2U 1-Chanel Expender Backplane: w/12xSAS/SATA ( 4xU2 NVMe) 3.5"
from (4x SFF-8643 MiniSAS-HD Ports + 4x SFF8639 NVMe Ports) to (12x SAS/SATA SFF-8484 Ports in 1-Chanel ) or ( 8x SAS/SATA Ports + 4x U2 NVMe Ports) - 2U Back Plane for CSE-829HE1
SAS3 BPN - 8x2.5" SSD/HDD Hotswap Drive Bays for CSE-M28SAC