Figure 162. 7mm SAS/SATA/NVMe backplane (top + bottom)
1  Power
2  Signal
Rear 2 x 2.5-inch SAS/SATA/NVMe backplane
See this section to locate the connectors on the rear 2 x 2.5-inch drive backplane.
Figure 163. Rear 2 x 2.5 NVMe backplane
1  NVMe 1
2  Power
3  NVMe 0
Figure 164. Rear 2 x 2.5 SAS/SATA backplane
1  SAS
2  Power
M.2 drive backplane
To locate the connectors on the M.2 drive backplanes, see 
“M.2 backplane and M.2 drive replacement” on 
page 129
for details.
Chapter 6. Internal cable routing 221