ThinkSystem SR665 2.5" Chassis Front BP2+3 16 x NVMe System + 
Adapter cable kit
This topic provides important information about ThinkSystem SR665 2.5" Chassis Front BP2+3 16 x NVMe 
System + Adapter cable kit. The option package contains the following items: 
Description Qty From To
1  Power cable from MB to front 2.5" backplane 2
PWR 1/2/3 (MB) Pwr (BP)
2  On-board to front 8 x 2.5" AnyBay Bay2
1
PCIe1 (MB) and PCIe2 (MB) NVMe0–1 (BP2)
3  On-board to front 8 x 2.5" AnyBay Bay2
1
PCIe3 (MB) NVMe2–3 (BP2)
4  RTM to front 8 x 2.5" AnyBay Bay2 1
C0 (RTM) and C1 (RTM) NVMe4–5 (BP2) and 
NVMe6–7 (BP2)
5  On-board to front 8 x 2.5" AnyBay Bay3
1
PCIe4 (MB) and PCIe5 (MB) NVMe0–1 (BP3)
6  On-board to front 8 x 2.5" AnyBay Bay3
1
PCIe6 (MB) NVMe2–3 (BP3)
7  On-board to front 8 x 2.5" AnyBay Bay3
1
PCIe7 (MB) NVMe4–5 (BP3)
8  On-board to front 8 x 2.5" AnyBay Bay3
1
PCIe8 (MB) NVMe6–7 (BP3)
MB: motherboard 
RTM: retimer switch adapter
For information about installing the option product, refer to the Internal cable routing chapter in the Setup 
Guide, or go to: 
https://thinksystem.lenovofiles.com/help/topic/7D2W/internal_cable_routing.html.
To get the latest technical information and download device drivers and updates, go to:  
https://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/sr665/7d2w/downloads/driver-list.
Chapter 1 System Options 29