Based on Intel® 845GV chipset and ICH4, IWILL ZPC supports latest Intel® Pentium 4 CPU. Advanced Intel® Extreme Graphics™ and DDR266 provide sufficient power for home/office applications. For external upgradability, ZPC support 4 USB ports (2 on the front panel and 2 on rear side) and 2 IEEE1394 ports. It’s also integrated with 10/100 Base-T Ethernet and Audio controller. The only support for 2.5-inch Hard Disk Drive and slim-type CD-ROM/CD-RW/DVD-ROM/Combo save much space than ones for current desktop PCs.