TigerDirect offers the MSI Socket FM2+ AMD A55 micro ATX Motherboard, model no. A55M-E33, for $59.99. Coupon code "CYC138676" cuts it to $34.99. With around $4 for shipping, that's the lowest total price we could find by $11, outside of the mentions below. The motherboard features support for AMD A10 / A8 / A6 / A4 processors, up to 16GB of DDR3 RAM, Gigabit Ethernet, four USB ports, four SATA 3Gb/s ports, HDMI, and one PCI Express x16 slot. Deal ends September 1.
A close price: Newegg offers it for $34.99 plus $4.99 for shipping via $10 mail-in rebate; while Fry's offers it for $39.99 shipped via $10 mail-in rebate.