Specifications

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
5
DESKTOP COMPUTER (DT) VIEW
FRONT VIEW
1 Optical Drive
5
Microphone Connector
2 Optical Drive Eject Button 6
Headphone Connector
3
Power Button, Power
Light
7
Drive Activity Light
4 USB Connectors (4) 8
Diagnostic Lights (4)
BACK VIEW
9 Padlock Ring 13 Expansion Card Slots(4)
10 Security Cable Slot 14 Power Supply Diagnostic
Light
11 Power Connectors 15 Power Supply Diagnostic
Button
12 Back Panel Connectors
1 Mouse Connector 7 Keyboard Connector
2 Link Integrity Light 8 USB Connectors (6)
3 Network Connector 9 DisplayPort Connector
4 Network Activity Light 10 VGA Connector
BACK PANEL CONNECTORS
5 Serial Connector 11 Line-in/Microphone
Connector
6 Line-out Connector