ItemItem DescriptionDescription ValuesValues
1 Drive bay count Number of drive bays supported by the backplane.
2 Drive form factor LFF—Large Form Factor
SFF—Small Form Factor
E3.S—Enterprise and Datacenter Standard Form Factor (EDSFF)
3 Maximum link rate per lane (GT/s) 12G
16G
24G
32G
4 Port link width and interface x1 NVMe/SAS—U.3 NVMe, SAS, or SATA
x4 NVMe/SAS—U.3 NVMe, SAS, or SATA
x4 NVMe—U.2 NVMe
x4 NVMe—E3.S
5 Universal backplane manager (UBM) options UBM2—Segregated SAS/SATA
UBM3 or UBM6—Converged
UBM4 or UBM6—Segregated U.2 NVMe
UBM5 or UBM7—EDSFF
6 Drive carrier type BC—Basic carrier (SFF)
LP—Low-profile carrier (LFF)
EC1—E3.S carrier
Tri-mode controller support for x1 U.3 NVMe, SAS, and SATA drives. System board connection supports SATA drives only.
CPU direct attach or tri-mode controller support for x4 U.3 NVMe or x1 SAS and SATA drives.
CPU direct attach or tri-mode controller support for x4 U.2 NVMe drives.
Fan numberingFan numbering
1
2
3
1
2
3