The Broadcom MegaRAID 9540-8i is an internal tri-mode RAID controller with eight ports for servers and enterprise storage systems. It connects SAS, SATA, and PCIe NVMe drives and enables the mixed use of these drive types in compatible systems.

It uses a PCIe 4.0 x8 host interface and the SAS3808 controller, and supports SAS data rates of up to 12 Gb/s and SATA data rates of up to 6 Gb/s. The internal SFF-8654 x8 connector can connect up to eight SAS/SATA drives directly, or more via SAS expanders, as well as up to four NVMe drives.

The controller supports RAID levels 0, 1, and 10 and features hardware secure boot. The MegaRAID 9540-8i is suitable for systems requiring basic RAID protection and PCIe 4.0 connectivity for internal SAS, SATA, or NVMe storage.