The Lenovo ThinkSystem 4350-8i and 4350-16i SAS/SATA 12Gb HBAs are high performance host bus adapters for internal storage connectivity in ThinkSystem servers. They integrate the latest SAS technology and offer eight or 16 lanes of 12 Gbps SAS. This product guide provides essential presales information to understand the ThinkSystem internal 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.