The ThinkSystem 440-8i and 440-16i SAS/SATA PCIe Gen4 12Gb HBAs are high performance PCIe 4.0 host bus adapters for internal storage connectivity in ThinkSystem servers. The adapters integrate the latest enhancements SAS technology and offer 8 or 16 lanes of 12 Gbps SAS. This product guide provides essential presales information to understand the ThinkSystem HBAs and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the HBAs and consider their use in IT solutions.