Processor Slot A Processors Coprocessor of AMD Athlon series Chipset VIA KX133 Athlon (VT8371 + VT82C686A) FSB 66/100/133MHz Memory CPU Build-in Memory: L1 Cache depends on CPU type 3X 168-pin DIMM Sockets with 3.3V SDRAM Total from 8MB to 1.5GB Expansion Slot 5 PCI 1 AMR 1 APG (4x) BIOS Award BIOS with DMI, Green Fun, PnP, and Anti-virus Support LS 120 / ZIP / CD-ROM Booting 2 MB Flash Memory On Board I/O 4X USB Ports Support & Standard IrDA Support 2X PCI Bus Master IDE Ports PIO Mode 3, 4 & DMA Mode 2, Ultra DMA 33/66 PS/2 Keyboard & Mouse Support 1 Floppy Port (Up to 2.88MB; 3 Mode Floppy Supported) 2 Serial Ports (16550 Fast UART Compatible) 1 Parallel Port (ECP, EPP Port) Power Management ACPI Standard ready for PC'99 Power On by PS/2 keyboard, PS/2 Mouse, RTC Alarm, Modem Ring, LAN & Soft-power Switch (ATX Power required) Power off by Windows 98 & 2000 Shut Down & Soft Power Switch (ATX Power Required) Power recovery ON/OFF control Board Size 305mm x 210mm ATX Size Warranty 1-Year Limited