Figure 1-3. OmniBook Bottom View Figure 1-4. OmniBook Rear View HP OmniBook XE2 Product Information 1-3 16 System-off button 20 Battery latch 17 Hard disk drive latch and locking screw 21 Battery 18 Hard disk drive 22 Port replicator connector 19 RAM expansion cover 1 Parallel port 6 Infrared port 2 Serial port 7 USB port 3 VGA port (external monitor) 8 PS/2 port 4 Audio out (external speaker) 9 AC adapter jack 5 Microphone jack