| Product  | 
  | 
| Model | 
HP Compaq dc7900 | 
| P/N | 
KP721AV | 
| Chassis design | 
Small form Factor | 
| C/O | 
Singapore | 
| 
 Product Specifications  | 
  | 
| Processor | 
Intel Core 2 Duo E8400 processor 3.0 GHz 6 MB L2 cache 1333 MHz FSB Socket 775 | 
| Chipset  | 
Intel Q45 Express chipset | 
| Memory | 
Memory: 2048MB Speed supported: PC2-5300 (667-MHz) Type 240 pin, DDR2 Synch DRAM Maximum allowed: 16-GB maximum (dual-channel symmetric) | 
| HDD | 
250 GB SATA 3G (3.0 Gb/sec) 7200 rpm | 
| Optical Driver Type | 
SATA DVD-ROM Drive | 
| FDD | 
No | 
| Graphic | 
Intel Graphics Media Accelerator 4500 (integrated on chipset) | 
| Network Integrated | 
Integrated Intel 82567LM GbE Network Connection | 
| Sound/Audio | 
Integrated HD audio with AD1884A codec (all ports are stereo) Internal Speaker (standard | 
| Media Card Reader | 
None | 
| External I/O ports  | 
Rear I/O: (6) USB 2.0, (1) serial port, (2) PS/2, (1) RJ-45, (1) VGA port, (1) DisplayPort, (1) audio in, (1) audio out, Rear I/O: (6) USB 2.0, (1) serial port, (2) PS/2, (1) RJ-45, (1) VGA port, (1) DisplayPort, (1) audio in, (1) audio out  Optional: 2nd serial port, (1) parallel port, (1) eSATA port Front I/O: (2) USB 2.0, headphone and microphone | 
| Expansion slots  | 
1 x PCI 1 x PCI Express x16 2 x PCI Express x1 | 
| Keyboard and mouse  | 
HP PS/2 keyboard  HP PS/2 mouse | 
| Monitor | 
Option | 
| Os | 
Genuine Windows XP Professional |