Direct from ASUS:
The ASUS CUSL2 Mainboard is based on the new Intel® 815E chipset with ATX form factor for the latest support in Intel® II/III Coppermine 450~933+MHz, and CeleronTM 333~566+MHz processors. This magnificent chipset is equipped with 133MHz Front Side Bus (FSB) and provided support for PC133/PC100 SDRAM, AGP Pro/4X, and ultra-fast UDMA/100 Bus Master IDE. Other features like Suspend-to-RAM, JumperFreeTM Mode and PC Health Monitoring will ensure your PC with maximum power-saving, ease of overclocking, and system safety. Finally, with six PCI and two CNR slots, you would be able to plug-in plenty of hardware devices (eg. SCSI, CD-RW, DVD-ROM, etc) for your needs.