EliteGroup K7S5A Pro - Motherboard - ATX - Socket A - SiS735 Chipset Type: Sis735 Data bus speed: 266 Mhz Dimensions (WxDxH): 12.0 in x 8.7 in Compatible Processors: Athlon XP, Duron, Athlon Supported RAM: DDR SDRAM, SDRAM in speed of PC100, PC133, PC2100, PC1600