Dell H1291 Optiplex GX270 LGA775 Motherboard. Dell meets the current and future demands of high performance, power embedded computing, making it ideal for communications, transaction terminal, interactive client, industrial automation applications as well as for standard home use. 

Manufacturer: Dell
Part Number: H1291 0H1291 CN-0H1291
Dell Compatible Part Numbers: C2057 X8677 X1105 D9076 H1291 H6405 DG286 0C2057 0X8677 0X1105 0D9076 0H1291 0H6405 0DG286 R6019 M2886 YF936 CG555 J9057 FG019 0FG019 ND515 R2472 0R2472 U1324 0U1324 0M2886 DG279 0DG279 H1105 0H1105 0YF936 0CG555 0D286 00D286 0R6019 X1078 U9268 N6016 R0786 0R0786 FC092 GD301 YF939 FG011 P9908 0P9908

Specifications:

6 x USB 2.0 ports
1 x Serial port
1 x Parallel port
1 x 10/100 network port
1 x Serial ATA IDE interfaces
2 x Parallel ATA IDE interfaces with UDMA 33, ATA-66/100 support
1 x Floppy FDD diskette drive interface
2 x PS/2 keyboard and mouse ports

Compatible Models: 

Dell Optiplex GX270 Desktop Series