Intel E7221 MCH;
Intel ICH6R South Bridge
Intel PXH-V I/O bridge
SMSC DME1737 Super I/O

Dual channel memory bus
4xr DDR-333/400 DIMM
max 4GB of unbuffered, ECC/non-ECC

Expansion Slots
1x PCI-X 64-bit 133/100/66MHz
1x 200-pin SO-DIMM connector
1x 32-bit 33MHz PCI 2.3 slot

1x ATA-100/66/33
4x Serial ATA 1.5Gb/s
RAID 0, 1

2x GB LAN