Lenovo ThinkSystem SR650 V2 Maintenance Manual page 59

Rear view with four 3.5-inch rear drive bays and two PCIe slots
Table 18. Components on the rear of the server
Callout
3.5-inch rear drive bays (4)
1
PCIe slot 6 (on riser 2 assembly)
3
Power supply 2 (optional)
5
USB 3 (5 Gbps) connector (DCI)
7
USB 3 (5 Gbps) connectors (DCIs)
9
Ethernet connectors on OCP 3.0 Ethernet adapter
11
(optional)
Note: For more information about each component, see "Rear components overview" on page 50.
Callout
PCIe slot 3 (on riser 1 assembly)
2
Power supply 1
4
NMI button
6
VGA connector
8
XClarity Controller Network connector
10
Chapter 2
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Server components
49