ASRock Rack Motherboard H97M WS Micro ATX 9.6" x9.6" Single socket H3 (LGA 1150) 4 x DIMM DDR3 1600/1333 /1066 non-ECC UDIMM, max. 32GB 4 x USB 3.0 ports (2 rear + 2 via header ) 6 x USB 2.0 ports (4 rear + 2 via header )