Designed for the enthusiast, but engineered for the mainstream, the Sapphire PURE CrossFire Advantage PC-AM2RD580Adv demonstrates that enhanced stability and performance can be implemented in a cost effective PC platform. Built upon the ATI CrossFire(TM) Xpress 3200 chipset, the Sapphire PC-AM2RD580Adv delivers the flexibility demanded by today's diverse PC applications. The Pure CrossFire Advantage mainboard boasts: DUAL PCI-Express x16 slots for Dual GPU support that delivers an unmatched gaming experience, support for the impressive AMD Athlon 64, Athlon FX and, Athlon X2 (Socket AM2) processors, support for up to 4GB of Dual Channel DDR2 system memory (800, 667 or 533), and 1000MHz HTT bus ensuring high speed data transfer. Ample expansion slots to fit all of your multimedia needs, onboard Gbit LAN and 10/100 LAN as well as 10x USB 2.0 affords the luxury of connectivity without limitations, and for peak hard drive performance the Sapphire PC-AM2RD580Adv boasts SATA II RAID 1/0 (4) and ATA133 ports.