Mwave offers the ASRock Intel Avoton C2550 Mini-ITX Motherboard / CPU Combo
, model no. C2550D4I, for $273
with free shipping
. That's the lowest total price we cold find by a buck. This motherboard combo features an Intel Avoton C2550 quad-core processor, one PCIe x8 slot, four 240-pin DDR3 memory slots, eight SATA 6Gb/s ports, four SATA 3Gb/s ports, Gigabit Ethernet, and three USB ports.