QNAP TVS-872N NAS Tower Ethernet LAN Black i3-8100T

QNAP TVS-872N. Supported storage drive types: HDD & SSD, Supported storage drive interfaces: Serial ATA II, Serial ATA III, Storage drive sizes supported: 2.5,3.5". Processor family: Intel® Core™ i3, Processor manufacturer: Intel, Processor model: i3-8100T. Internal memory: 8 GB, Internal memory type: DDR4, Maximum RAM supported: 32 GB. Ethernet LAN data rates: 100,1000,2500,5000 Mbit/s, Supported network protocols: TCP/IP, IPv4, IPv6. On-board graphics card base frequency: 350 MHz, On-board graphics card dynamic frequency (max): 1100 MHz, On-board graphics card ID: 0x3E91
Manufacturer: QNAP
Availability: Out of Stock - on backorder and will be dispatched once in stock.
SKU: 5666772
Manufacturer part number: TVS-872N-I3-8G
$1,599.00
Powered by an 8th generation Intel® Core™ i3 processor, the high-performance TVS-872N NAS features 5GBASE-T high bandwidth, which delivers up to five times the speed of regular Gigabit Ethernet and allows for smoother 4K video transfer, display, and editing. With M.2 SSD support to enable SSD caching coupled with the HybridMount cloud storage gateway, the TVS-872N provides a hybrid cloud storage solution for you to leverage cloud spaces as local storage and access the cloud with lower latency. 5 Times Faster with 5GBASE-T Connectivity The TVS-872N adopts the powerful 8th generation Intel® Core™ i3-8100T quad-core 3.1 GHz processor with 8 GB dual-channel DDR4 memory (expandable to 32 GB) to deliver outstanding performance. The TVS-872N has one four-speed 5GBASE-T port (5G/2.5G/1G/100M) for connectivity up to five times faster than Gigabit Ethernet, supports SATA 6Gbps drives, and features AES-NI encryption for delivering high performance while also maintaining the security of your data. The USB Type-C port allows you to transfer large media files across devices, providing a more efficient workflow. Follow the Wi-Fi 6 trends and upgrade to a 5GbE/2.5GbE NAS As more laptops and access points support the Wi-Fi 6 (802.11ax) standard, wireless bandwidth has greatly increased to 5GbE/2.5GbE, delivering much faster speeds than conventional Gigabit connections. Don’t let your NAS hinder your user experience – add a TVS-872N to your network environment to enhance your storage and access experience. You can also add 5GbE connectivity to your laptop with an affordable QNAP USB 3.0 to 5GbE adapter (QNA-UC5G1T) and directly connect to the TVS-872N to benefit from higher network speeds. Get Performance Benefits from SSD Caching and Qtier Technology In addition to using 2.5-inch SSDs for caching, you can utilize the two built-in M.2 SSD slots in the TVS-872N for installing PCIe (Gen 3 x2, 2 GB/s) NVMe SSDs with 2280 form factors (M.2 SSDs are sold separately). You can also add extra M.2 SSDs with a QM2 card and leverage QNAP SSD technologies to improve NAS performance. Improve Random Data Access Speeds with an SSD Cache SSD caches accelerate IOPS performance and reduce latency for storage volumes. They are perfect for IOPS-demanding applications (including databases and virtualization) and can significantly improve overall workflow. Maximize the Value of SSDs with Qtier Technology Qtier™ technology empowers the TVS-872N with auto-tiering, which helps optimize storage efficiency by automatically moving data between M.2 SSDs, 2.5-inch SSDs, and high-capacity HDDs based on data access frequency. Qtier™ 2.0 features IO-awareness that empowers SSD-tiered storage with a cache-like reserved space to handle burst I/O in real time, greatly maximizing the advantages of SSDs. Freely Remove Qtier’s SSD RAID Tier You can flexibly remove an SSD from an SSD RAID group to change or add SSDs, or change SSD RAID type or SSD type (SATA, M.2, QM2) when needed to enhance storage auto-tiering efficiency. Install a QM2 Card and Enable SSD Caching to Optimize Performance The TVS-872N features two PCIe Gen3 slots, allowing you to install M.2 SSDs by via QM2 expansion cards, in addition to the M.2 SSDs (sold separately) installed in the built-in M.2 SSD slots. You can configure a RAID 5/6 array to achieve a higher sequential speed or read-only cache speed similar to the performance of a RAID 10 array while maintaining higher storage efficiency. Deduplicating Data at the Source Cuts Time and Storage Space for Multi-Version Backup HBS consolidates backup, restoration, and synchronization into a single QTS app, easily transferring your data to local, remote, and cloud storage spaces as a comprehensive data storage and disaster recovery plan. With QuDedup technology that deduplicates the data at the source, the efficiency of backing up multiple versions to the destination storage is significantly improved while optimizing storage utilization. In the event of accidental data loss, HBS can also help you quickly restore your data. Low Latency Access to Cloud Data with Cloud Storage Gateways The TVS-872N perfectly integrates NAS with mainstream cloud services. By deploying cloud storage gateways and enabling local caching on the NAS, you can seamlessly use the cloud for storage, backup, and data recovery with low-latency access, providing an innovative hybrid cloud experience. HybridMount File-Based Cloud Gateway Flexibly expand your storage capacity by connecting to cloud storage. You can leverage QTS apps to manage and edit your cloud files or monitor multimedia files. HybridMount is ideal for file server online collaboration and file-level data analysis. VJBOD Cloud Block-Based Cloud Gateway VJBOD Cloud supports mounting object cloud storage as a block-based volume or LUN on a NAS. Block-based data transmission uploads random data and large files to the cloud in blocks, and only block-based volume or LUN changes such as addition, modification, or deletion will be transmitted. This is ideal for enterprise-level applications with large file transfer requirements, such as databases, VM volumes, and videos. Ultimate Visual Experience with 4K HDMI Output and Viewing on Mobile Devices The TVS-872N has an HDMI 2.0 port that supports 4K (3840 x 2160) 60Hz output, providing higher resolution and color realism for greater media entertainment. By connecting the TVS-872N to an HDTV via the HDMI output, you can directly view multimedia content saved on the NAS on a bigger screen. You can also download and install versatile multimedia apps from Ubuntu® Software Center through QNAP Linux Station. QNAP's HD Station also allows users to directly enjoy multimedia using HD Player or third-party players like Plex® Home Theater. Featuring advanced Intel® UHD Graphics 630, the TVS-872N provides high-quality 4K (H.264) video transcoding, and you can easily convert videos to universal file formats that can be smoothly played on multiple devices*. *The TVS-872N’s hardware provides H.264 hardware decoding, encoding, and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth. Safeguard Your Environment with QVR Pro QNAP’s QVR Pro surveillance solution allows you to arrange a dedicated, independent storage space for surveillance data on the TVS-872N and leverage the advantages of scalable storage. QVR Pro greatly simplifies camera management, storage space allocation, camera live view, and playback. You can also use USB webcams as network cameras with the QUSBCam2 app to remotely monitor your surveillance feeds any time with QVR Pro Client’s companion mobile app. Easy Photo Management with QuMagie-Enabled AI Automated Photo Categorization QuMagie brings you a brand-new photo management experience. By integrating an AI deep-learning algorithm, QuMagie enables facial recognition, object identification, and geography tagging of photos on your NAS. Similar photos are grouped together in the AI Albums (i.e., People, Things, and Places). Other useful features include a built-in timeline scroll, customizable folder covers, and a powerful search tool, providing you with the ultimate photo management and sharing solution. Protect Data with Snapshots Snapshots help protect your data by fully recording the NAS system state and metadata. If a file is accidentally deleted or modified, you can use snapshots from Storage & Snapshots Manager or File Station to quickly restore files to their previously recorded state. QNAP snapshots are block-based and only record modified data. Not only does this save storage space, but it also reduces the time required to back up and restore data. The TVS-872N supports up to 256 snapshots per volume/LUN and up to 1,024 snapshots in total. Optimized Collaboration with Seamless File Sharing and Sync The TVS-872N centrally stores data and files and supports SMB/CIFS, AFP, and NFS protocols for file sharing across Windows®, Mac®, and Linux®/UNIX® networks. Coupled with Qsync, a QNAP NAS utility that transforms your NAS into a safe, high-capacity data center for file synchronization, any file uploaded to the TVS-872N will be made available to all linked devices, such as computers, laptops, and mobile devices. You can sync shared folders and team folders for group file sharing to enhance the flexibility of team projects and collaboration. Files can be centrally managed using File Station, including files from mobile devices and optical disc drives. ll-In-One Server to Host Virtual Machines and Containers Virtualization Station and Container Station jointly introduce a hybrid approach to virtualization. No matter your virtualization needs, you can count on QNAP for complete virtualization support. Run multiple Windows®, Linux®, UNIX®, and Android™ virtual machines and access them via web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without the need for additional physical servers. Experience LXC and Docker® lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import and export containers, and create abundant microservices.

 

  • 4-speed 5GBASE-T RJ45 (5G/2.5G/1G/100M) connectivity accelerates virtualization applications and file sharing across teams and devices
  • M.2 PCIe (Gen 3 x2, 2 GB/s) NVMe SSD support for setting up caching or storage pools, improving file access efficiency
  • PCIe expandability allows a QM2 card for adding an extra M.2 SSD, or an entry-level graphics card to accelerate NAS video processing
  • 4K media playback and real-time transcoding; directly watch videos on an HDTV via HDMI 2.0 (4K @60Hz) output
  • HBS provides comprehensive backup and data recovery; QuDedup deduplicates the data at the source to reduce storage space usage, bandwidth usage, and backup time
  • Snapshots fully record system status and data, allowing you to protect files and data from accidental deletion and malware attacks
Powered by an 8th generation Intel® Core™ i3 processor, the high-performance TVS-872N NAS features 5GBASE-T high bandwidth, which delivers up to five times the speed of regular Gigabit Ethernet and allows for smoother 4K video transfer, display, and editing. With M.2 SSD support to enable SSD caching coupled with the HybridMount cloud storage gateway, the TVS-872N provides a hybrid cloud storage solution for you to leverage cloud spaces as local storage and access the cloud with lower latency. 5 Times Faster with 5GBASE-T Connectivity The TVS-872N adopts the powerful 8th generation Intel® Core™ i3-8100T quad-core 3.1 GHz processor with 8 GB dual-channel DDR4 memory (expandable to 32 GB) to deliver outstanding performance. The TVS-872N has one four-speed 5GBASE-T port (5G/2.5G/1G/100M) for connectivity up to five times faster than Gigabit Ethernet, supports SATA 6Gbps drives, and features AES-NI encryption for delivering high performance while also maintaining the security of your data. The USB Type-C port allows you to transfer large media files across devices, providing a more efficient workflow. Follow the Wi-Fi 6 trends and upgrade to a 5GbE/2.5GbE NAS As more laptops and access points support the Wi-Fi 6 (802.11ax) standard, wireless bandwidth has greatly increased to 5GbE/2.5GbE, delivering much faster speeds than conventional Gigabit connections. Don’t let your NAS hinder your user experience – add a TVS-872N to your network environment to enhance your storage and access experience. You can also add 5GbE connectivity to your laptop with an affordable QNAP USB 3.0 to 5GbE adapter (QNA-UC5G1T) and directly connect to the TVS-872N to benefit from higher network speeds. Get Performance Benefits from SSD Caching and Qtier Technology In addition to using 2.5-inch SSDs for caching, you can utilize the two built-in M.2 SSD slots in the TVS-872N for installing PCIe (Gen 3 x2, 2 GB/s) NVMe SSDs with 2280 form factors (M.2 SSDs are sold separately). You can also add extra M.2 SSDs with a QM2 card and leverage QNAP SSD technologies to improve NAS performance. Improve Random Data Access Speeds with an SSD Cache SSD caches accelerate IOPS performance and reduce latency for storage volumes. They are perfect for IOPS-demanding applications (including databases and virtualization) and can significantly improve overall workflow. Maximize the Value of SSDs with Qtier Technology Qtier™ technology empowers the TVS-872N with auto-tiering, which helps optimize storage efficiency by automatically moving data between M.2 SSDs, 2.5-inch SSDs, and high-capacity HDDs based on data access frequency. Qtier™ 2.0 features IO-awareness that empowers SSD-tiered storage with a cache-like reserved space to handle burst I/O in real time, greatly maximizing the advantages of SSDs. Freely Remove Qtier’s SSD RAID Tier You can flexibly remove an SSD from an SSD RAID group to change or add SSDs, or change SSD RAID type or SSD type (SATA, M.2, QM2) when needed to enhance storage auto-tiering efficiency. Install a QM2 Card and Enable SSD Caching to Optimize Performance The TVS-872N features two PCIe Gen3 slots, allowing you to install M.2 SSDs by via QM2 expansion cards, in addition to the M.2 SSDs (sold separately) installed in the built-in M.2 SSD slots. You can configure a RAID 5/6 array to achieve a higher sequential speed or read-only cache speed similar to the performance of a RAID 10 array while maintaining higher storage efficiency. Deduplicating Data at the Source Cuts Time and Storage Space for Multi-Version Backup HBS consolidates backup, restoration, and synchronization into a single QTS app, easily transferring your data to local, remote, and cloud storage spaces as a comprehensive data storage and disaster recovery plan. With QuDedup technology that deduplicates the data at the source, the efficiency of backing up multiple versions to the destination storage is significantly improved while optimizing storage utilization. In the event of accidental data loss, HBS can also help you quickly restore your data. Low Latency Access to Cloud Data with Cloud Storage Gateways The TVS-872N perfectly integrates NAS with mainstream cloud services. By deploying cloud storage gateways and enabling local caching on the NAS, you can seamlessly use the cloud for storage, backup, and data recovery with low-latency access, providing an innovative hybrid cloud experience. HybridMount File-Based Cloud Gateway Flexibly expand your storage capacity by connecting to cloud storage. You can leverage QTS apps to manage and edit your cloud files or monitor multimedia files. HybridMount is ideal for file server online collaboration and file-level data analysis. VJBOD Cloud Block-Based Cloud Gateway VJBOD Cloud supports mounting object cloud storage as a block-based volume or LUN on a NAS. Block-based data transmission uploads random data and large files to the cloud in blocks, and only block-based volume or LUN changes such as addition, modification, or deletion will be transmitted. This is ideal for enterprise-level applications with large file transfer requirements, such as databases, VM volumes, and videos. Ultimate Visual Experience with 4K HDMI Output and Viewing on Mobile Devices The TVS-872N has an HDMI 2.0 port that supports 4K (3840 x 2160) 60Hz output, providing higher resolution and color realism for greater media entertainment. By connecting the TVS-872N to an HDTV via the HDMI output, you can directly view multimedia content saved on the NAS on a bigger screen. You can also download and install versatile multimedia apps from Ubuntu® Software Center through QNAP Linux Station. QNAP's HD Station also allows users to directly enjoy multimedia using HD Player or third-party players like Plex® Home Theater. Featuring advanced Intel® UHD Graphics 630, the TVS-872N provides high-quality 4K (H.264) video transcoding, and you can easily convert videos to universal file formats that can be smoothly played on multiple devices*. *The TVS-872N’s hardware provides H.264 hardware decoding, encoding, and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth. Safeguard Your Environment with QVR Pro QNAP’s QVR Pro surveillance solution allows you to arrange a dedicated, independent storage space for surveillance data on the TVS-872N and leverage the advantages of scalable storage. QVR Pro greatly simplifies camera management, storage space allocation, camera live view, and playback. You can also use USB webcams as network cameras with the QUSBCam2 app to remotely monitor your surveillance feeds any time with QVR Pro Client’s companion mobile app. Easy Photo Management with QuMagie-Enabled AI Automated Photo Categorization QuMagie brings you a brand-new photo management experience. By integrating an AI deep-learning algorithm, QuMagie enables facial recognition, object identification, and geography tagging of photos on your NAS. Similar photos are grouped together in the AI Albums (i.e., People, Things, and Places). Other useful features include a built-in timeline scroll, customizable folder covers, and a powerful search tool, providing you with the ultimate photo management and sharing solution. Protect Data with Snapshots Snapshots help protect your data by fully recording the NAS system state and metadata. If a file is accidentally deleted or modified, you can use snapshots from Storage & Snapshots Manager or File Station to quickly restore files to their previously recorded state. QNAP snapshots are block-based and only record modified data. Not only does this save storage space, but it also reduces the time required to back up and restore data. The TVS-872N supports up to 256 snapshots per volume/LUN and up to 1,024 snapshots in total. Optimized Collaboration with Seamless File Sharing and Sync The TVS-872N centrally stores data and files and supports SMB/CIFS, AFP, and NFS protocols for file sharing across Windows®, Mac®, and Linux®/UNIX® networks. Coupled with Qsync, a QNAP NAS utility that transforms your NAS into a safe, high-capacity data center for file synchronization, any file uploaded to the TVS-872N will be made available to all linked devices, such as computers, laptops, and mobile devices. You can sync shared folders and team folders for group file sharing to enhance the flexibility of team projects and collaboration. Files can be centrally managed using File Station, including files from mobile devices and optical disc drives. ll-In-One Server to Host Virtual Machines and Containers Virtualization Station and Container Station jointly introduce a hybrid approach to virtualization. No matter your virtualization needs, you can count on QNAP for complete virtualization support. Run multiple Windows®, Linux®, UNIX®, and Android™ virtual machines and access them via web browser or Virtual Network Computing (VNC). Businesses can run virtualized server applications on a single NAS without the need for additional physical servers. Experience LXC and Docker® lightweight virtualization technologies, download apps from the built-in Docker Hub Registry®, import and export containers, and create abundant microservices.

 

  • 4-speed 5GBASE-T RJ45 (5G/2.5G/1G/100M) connectivity accelerates virtualization applications and file sharing across teams and devices
  • M.2 PCIe (Gen 3 x2, 2 GB/s) NVMe SSD support for setting up caching or storage pools, improving file access efficiency
  • PCIe expandability allows a QM2 card for adding an extra M.2 SSD, or an entry-level graphics card to accelerate NAS video processing
  • 4K media playback and real-time transcoding; directly watch videos on an HDTV via HDMI 2.0 (4K @60Hz) output
  • HBS provides comprehensive backup and data recovery; QuDedup deduplicates the data at the source to reduce storage space usage, bandwidth usage, and backup time
  • Snapshots fully record system status and data, allowing you to protect files and data from accidental deletion and malware attacks
Products specifications
Attribute nameAttribute value
Tjunction82 °C
Operating system version4.4.0
Weight15.6 lbs
Maximum RAM supported32 GB
Width13"
Depth11"
Height7.41"
TypeNAS
Display TypeLCD
Quick installation guideY
Supported storage drive interfacesSerial ATA II, Serial ATA III
Supported file systemsFAT32, HFS+, NTFS, ext3, ext4
Cable lock slotY
Cable lock slot typeKensington
Intel Clear Video TechnologyY
System bus rate8 GT/s
Processor generation8th gen Intel® Core™ i3
On-board graphics card ID0x3E91
Number of built-in speakers1
Maximum on-board graphics card memory64 GB
On-board graphics card DirectX version12.0
On-board graphics card OpenGL version4.5
Browser supportedApple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox
HDMI version2.0
Configurable TDP-down frequency2.4 GHz
Device classSmall & Medium Business
PCI Express x4 (Gen 3.x) slots1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity2
Wake-on-LAN readyY
Harmonized System (HS) code84714100
Link aggregationY
Access Control List (ACL)Y
BuzzerY
Multilingual supportY
Built-in iTunes serverY
Built-in FTP serverY
Fan voltage12 V
System logY
Hot spareY
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity2
Password authenticationY
Dynamic DNS (DDNS)Y
WLAN adapter supportedY
Number of M.2 (M & B) slots2
SnapshotY
Fan diameter 22.36"
USB copy functionY
Technical details
Product colorBlack
Packaging data
Package weight20.3 lbs
Ports & interfaces
Ethernet LAN (RJ-45) ports3
HDMI ports quantity1
USB portY
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity1
3.5 mm (1/8-inch) outY
Microphone inY
Design
Built-in displayY
Chassis typeTower
Operational conditions
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)5 - 95 %
Power
Power consumption (typical)65.03 W
Power consumption (sleep)41.47 W
AC input voltage100 - 240 V
Number of power supply units1
Power supply unit (PSU) capacity250 W
Power supply locationBuilt-in
Features
Noise level24.2 dB
Internal memory8 GB
Internal memory typeDDR4
Number of fans4 fan(s)
Cooling typeActive
LED indicatorsHDD, LAN, Status, USB
On/off switchY
S.M.A.R.T. supportY
Linux operating systems supportedY
Built-in speaker(s)Y
Other features
Processor ARK ID129944
Packaging content
Cables includedAC, LAN (RJ-45)
Performance
Fan diameter4.72"
Ethernet LANY
Backup functionY
Backup featuresCloud, iSCSI LUN
Reset buttonY
Processor frequency3.1 GHz
Storage
RAID supportY
RAID levels0, 1, 5, 6, 10, 50, 60, JBOD
Storage drives installedN
Installed storage drive typeN
Supported storage drive typesHDD & SSD
Hot-swap drive baysY
Number of storage drives supported8
Storage drive sizes supported2.5,3.5"
Network
Ethernet LAN data rates100,1000,2500,5000 Mbit/s
Wi-FiN
Jumbo frames supportY
DHCP clientY
iSCSI supportY
Management features
Web-based managementY
DHCP serverY
System requirements
Windows operating systems supportedWindows 10, Windows 7, Windows 8
Mac operating systems supportedMac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Memory
Flash memory5000 MB
Memory slots2x SO-DIMM
Processor
Processor codeSR3Y8
Processor familyIntel® Core™ i3
Processor manufacturerIntel
Processor modeli3-8100T
Processor cores4
Processor threads4
Processor cache6 MB
Bus typeDMI3
CPU configuration (max)1
PCI Express configurations1x16, 1x8+2x4, 2x8
PCI Express slots version3.0
Processor cache typeSmart Cache
Processor codenameCoffee Lake
Processor lithography14 nm
Processor operating modes64-bit
Processor package size37.5 x 37.5 mm
Processor socketLGA 1151 (Socket H4)
Scalability1S
SteppingB0
Thermal Design Power (TDP)35 W
On-board graphics card modelIntel® UHD Graphics 630
Maximum internal memory supported by processor64 GB
Memory bandwidth supported by processor (max)37.5 GB/s
Processor special features
Embedded options availableY
Enhanced Intel SpeedStep TechnologyY
Execute Disable BitY
Idle StatesY
Intel 64Y
Intel Enhanced Halt StateY
Intel Identity Protection Technology version1.00
Intel Secure Key Technology version1.00
Intel Stable Image Platform Program (SIPP)N
Intel Stable Image Platform Program (SIPP) version0.00
Intel Trusted Execution TechnologyN
Intel TSX-NIN
Intel TSX-NI version0.00
Intel Virtualization Technology (VT-x)Y
Intel VT-x with Extended Page Tables (EPT)Y
Intel® AES New Instructions (Intel® AES-NI)Y
Intel® Clear Video HD Technology (Intel® CVT HD)Y
Intel® Identity Protection Technology (Intel® IPT)Y
Intel® InTru™ 3D TechnologyY
Intel® OS GuardY
Intel® Quick Sync Video TechnologyY
Intel® Secure KeyY
Intel® Smart CacheY
Intel® Turbo Boost TechnologyN
Maximum number of PCI Express lanes16
Thermal Monitoring TechnologiesY
Thermal solution specificationPCG 2015A
Memory types supported by processorDDR4-SDRAM
Software
Operating system installedQNAP Turbo System
Security
Security algorithms256-bit AES, HTTPS, SSH, SSL/TLS
Protocols
Supported network protocolsTCP/IP, IPv4, IPv6
Graphics
On-board graphics card base frequency350 MHz
On-board graphics card dynamic frequency (max)1100 MHz
Number of displays supported (on-board graphics)3