Dell XE specifications External Connectors, System Board Connectors, Controls and Lights

Small Form Factor	one
5.25 inch SATA DVD+/-RW drive:
Desktop	one
Small Form Factor	one (slim line)
NOTE: The Small Form Factor computer can support only two 2.5" hard drives with brackets.
External Connectors
Audio:
Back panel	one line-out connector
	one line-in connector/microphone
Network	two RJ45 connectors
Serial	two 9-pin connector; 16550C-compatible
USB 2.0:
Front panel	two connectors
Back panel	four connectors
	one 24 V powered connector
Video	one 15-pin VGA connector
	one DisplayPort connector
	DVI with add-on graphics card only
	NOTE: Video connectors vary depending on the
	graphics card selected.
System Board Connectors
PCI 2.3 - data width 32 bits:
Desktop	two 120-pin connectors
Small Form Factor	one 120-pin connector
PCI Express x16 - data width 16 PCI Express lanes:
Desktop	one 164-pin x16 connector
Small Form Factor	one 164-pin (x16) connector
PCI Express x1- Data width one PCI- Express lane:
Desktop	one 36-pin connector
Small Form Factor	N/A
Serial ATA:
Desktop	three 7-pin connectors
Small Form Factor	three 7-pin connectors
Memory	four 240-pin connectors
Internal USB device	one 10-pin connector (supports two USB ports)
Processor fan	one 5-pin connector
Hard-drive fan	one 5-pin connector
Front panel control	one 40-pin connector
Processor	one 775-pin connector
Power 12 V	one 4-pin connector
Power	one 24-pin connector
Controls and Lights
Front of the computer:
Power button light	solid blue light — indicates power-on state
	blinking blue light — indicates sleep state of the
	computer
	solid amber light — indicates a problem with the
	system board or power supply
	blinking amber light — indicates a problem with the
	system board
Drive activity light	displays the SATA hard drive or optical drive activity
	blue light — indicates that the computer is reading