M.2 drive backplanes
This section provides cable routing information for the M.2 drive backplanes.
The server supports one of the following M.2 drive backplanes:
Figure 269. M.2 x1* NVMe 2-bay backplane
*x1: supports PCIe x1 connection to each drive and 
provides build-in RAID function
Figure 270. M.2 x4* SATA/NVMe 2-bay backplane
*x4: supports PCIe x4 connection to each drive
• 
“M.2 x1 NVMe 2-bay backplane” on page 294
•  “M.2 x4 SATA/NVMe 2-bay backplane” on page 295
Chapter 6. Internal cable routing 293