4-BAY SOHO NAS: Marvell Armada 388 Dual Core 1.8 GHz SoC,1GB DDR4 on board, 1 x Giga Port, USB 3.0 port x2 (Rear)

5 BAYNAS: INTEL ATOM PROCESSOR D2550 (1.86GHZ DUAL CORE) , 4GB DDR3 SDRAM , USB 2.0 X 4 , USB 3.0 X 1 ,HDMI X 1 , VGA X 1 BUNDLED WITH WSS ESSENTIALS 2012