We have received a limited number of these Awesome Compaq Evo D51s (D510) Pentium 4 - SFF systems. These feature the SFF- Small Form Factor case. No one builds a smaller, more powerful system. These feature the top of the line specs for this series- This is a little powerhouse.

Quick Specifications
Manufacturer	Compaq
Model	Evo D51s (D510) SFF (Small Form Factor Desktop)
OS	(see options)
Processor	(see options)
Cache	512 KB
Hyperthreading	No
Front Side Bus	533 MHz
Chip Set	Intel 845G
RAM	Amount Installed:	(see options)
	Supports:	DDR PC1600, PC2100, DDR PC2700, DDR PC3200
	Memory Speed:	200 MHz & 266 MHz
	Maximum RAM:	2 GB
	Memory Slots:	2
Hard Drive	(see options) ATA/100 EIDE Supports One Hard Drive
Video	Integrated Empty Low-Profile AGP 4x
Optical Drive	(see options) One Standard IDE Bay
Floppy Drive	3.5" 1.4MB
Sound	Integrated
USB	4 Highspeed USB 2.0 Ports
WiFi	(see options)
Bluetooth	(see options)
NIC	Onboard 10/10/1000 Gigabit PCI Network Card (NIC) Cable/DSL/Broadband - Highspeed Internet Ready
Speakers	(see options)
Modem	No
PCI Slots	2
Also Includes	Keyboard, Mouse and Power Cord
Interfaces	Front: 1 Headphone 1 Microphone 2 USB 2.0 Rear: 2 PS/2 Ports (keyboard/Mouse) 2 Serial 1 Parallel 2 USB 2.0 Audio-In, Audio-Out NIC (RJ45) 15-Hole VGA Video
Approximate Dimensions	Horizontal Orientation: 13.1" Wide, 14.6 " Deep, 3.8 " High