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