Used MERCURY KOB 845GL NDMx V1.2 Desktop Motherboard Chipset: Intel Pentium 4 Memory: Two 184-pin DDR DIMM sockets for 2.5V DDR SDRAM (DDR400) – Maximum: 2GB Windows supported: Windows 98/ME/XP Port’s : ps/2,serial com port, vga,4* usb , audio,paraller(LPT1) port SLOT:  2*PATA SLOT, 2* IDE,2* RAM SLOT ,2*PCI,CNR