cpu marvell armada 370 800mhz floating point unit yes hardware encryption engine yes ram size ddr3 256mb compatible drive type 35rdquo25rdquo sata iiiii x 2 hard drives not included disk holders are required for 25rdquo drives maximum internal raw capacity 16tb 8tb hdd x 2 the actual capacity will differ according to volume types external ports usb 20 port x 2 size hxwxd 165 mm x 100 mm x 2255 mm weight 870g lan gigabit rj 45 x 1 wireless