8 slots Max 64GB of ECC Fully-Buffered DIMM (FBD) DDRII 800/667/533 MHz SDRAM 4. 1 UIO slot (support SMC UIO cards) 2 PCI-E x16 (Gen 2.0), 2 PCI-X 133MHz, 2 PCI 5. Dual 1394 Firewire LAN 6. 7.1 channel HD-audio 9.
eBay