Rear view with eight 2.5-inch rear drive bays and four PCIe slots
Table 16.  Components on the rear of the server
Callout Callout
1  PCIe slot 1 (on riser 1 assembly) 2  PCIe slot 2 (on riser 1 assembly)
3  PCIe slot 3 (on riser 1 assembly) 4  PCIe slot 6 (on riser 2 assembly)
5  2.5-inch rear drive bays (8)
6  Power supply 1
7  Power supply 2 (optional)
8  NMI button
9  USB 3 (5 Gbps) connector (DCI) 10  VGA connector
11  USB 3 (5 Gbps) connectors (DCIs) 12  XClarity Controller Network connector
13  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 47