Back Chassis View - Dell OptiPlex 5055 Tower Owner's Manual

Back chassis view

1 Line-out port
3 Serial port
5 USB 3.1 Gen1 port
7 Expansion card slots
9 Power supply diagnostic light
11 Kensington security cable slot
13 PS/2 mouse port
15 Release latch
2 DisplayPort
4 PS/2 keyboard port
6 USB 2.0 ports (supports Smart Power On)
8 Power connector port
10 Padlock ring
12 Network port
14 VGA connector port (optional)
16 Cable cover lock slot
Chassis 9