8x3.5" SAS3/SAS2/SATA3 12Gbps Ports ( 4x NVMe mini-Link Ports) for SC743/SC745
( from 2x SAS3 mini-SAS-HD SFF-8643 ports to 8x 3.5" SAS/SATA hot-Swap ports) or ( from 1x SAS3 miniSAS-HD SFF-8643 port and 4x NVMe mini-Link Ports to 4x 3.5" NVMe hot-Swap ports (0~3) and 4x 3.5" SAS/SATA hot-Swap Ports (4~7) )