Motherboard, supermicro 370der, rev.1.1, dual skt 370, scsi 68 pinoptional 90 degree angle riser cards can accommodate either, (1) 64-bit / 66 mhz 3.3v pci cards or (2) 64 or 32-bit / 33 mhz 5v pci cards, in a 1u chassis.memory must be installed in identical pairs (interleave).generalpackaged quantity 1.0product type motherboard - atxcache memory nonechipset type serverworks serverset iii he-slmax bus speed 133.0 mhzprocessor socket socket 370max processors qty 2.0compatible processors pentium iiisupported rammax size 4.0 gbtechnology sdrambus clock 133 mhzdata integrity check eccregistered or buffered registered,bufferedgraphicsgraphics controller ati rage xlvideo memory 8.0 mblannetwork interfaces ethernetmodem noneexpansion / connectivityexpansion slot(s) 1.0 x cpu pci 64 - dimm 168-pin,2.0 x memory,4.0 xstorage interfaces ata-33 - connector(s): 2 x 40pin idc,ultra160 scsi - connector(s): 2 x 68pin hdinterfaces 1.0 x mainboard ps/2 mouse - internal signaling - 3 pin in-line,1.0 x ps/2 keyboard,1.0 x lan,2.0 x serial,1.0 x vga,1.0 x usb,2.0 xinternal interfaces 1.0 x floppycompatible slots nonefeaturesbios type amimiscellaneouscompliant standards plug and playwidth 12.0 indepth 10.0 in