Product Matrix Networking Appliance Intel Celeron Bay Trail J1900. Quad-core.clock speed 2.00GHz Intel Celeron Bay Trail J1800. Dual-core.clock speed 2.41GHz 6 x Intel GbE chip DDR3L-1333MHz, SO-DIMM 8GB 0 6 2-pair(LAN3&LAN4, LAN5&LAN6) 1 X 2.5" 1 x SATAII 1 x RJ45 Option by cable 1 x USB 3.0, 2 x USB 2.0 235mm x 152mm x 44.5mm Cooling Fan 38 AMO G-Series GX-420MC Quad-core. clock speed 2.00GHz AMO G-Series SoC DDR3L-1600MHz, SO-DIMM 16GB 0 6 0 2-pair(LAN1&LAN2, LAN3&LAN4) 0 0 1 X 2.5" 1 x SATAII 1 x RJ45 Option by cable 2 x USB 3.0, 2 x USB 2.0(lnternal pin header) 242mm x 149.5mm x 44mm Cooling Fan 40 Specifications are subject to change without notice.