This is a genuine Supermicro 16-Port Internal SAS3 12Gb/s Host Bus Adapter (HBA) (P/N: AOC-S3216L-L16iT). Powered by the robust Broadcom SAS 3216 controller, this low-profile card is a high-performance solution for connecting a large number of drives directly to a server or workstation. It operates in a pure HBA "IT Mode," providing direct pass-through access to each drive, making it the ideal choice for software-defined storage solutions.

Key Features 

• High-Density Connectivity: Provides 16 internal 12Gb/s SAS/SATA ports via four MiniSAS HD (SFF-8643) connectors, allowing for connection to a large number of storage devices.

• IT Mode Firmware: This is a pure Host Bus Adapter that presents all drives directly to the operating system. It is the perfect hardware for software-defined storage solutions like ZFS (used in TrueNAS and unRAID) and Storage Spaces Direct.

• 12Gb/s SAS3 Performance: The SAS3 interface provides up to 12Gb/s throughput per lane, ensuring maximum performance from modern SSDs and hard drives.

• Low Profile Form Factor: Comes with a low-profile bracket, making it suitable for installation in 2U servers and compact workstation chassis.