4 bay nas max hard drives 4 hard drive mountings click removable drive hard drive location horizontal internal interface sata ii target audience small and medium sized businesses smbs raid levels 0 1 5 6 10 jbod networking gigabit 101001000 connections 2x usb 20 3x usb 30 2x rj 45 positions of connectivity ports 1x usb front 4x usb back 2x rj 45 back cases rack mount 1u processors intel atom d2700 dual core clock speed 2 130 mhz ram 2 gb