4 bay nas memory capacity 8 tb number of installed hard drives 4 max hard drives 4 memory capacity per hard drive 2 tb hard drive mountings screwed removable drive hard drive location vertical internal interface sata ii target audiences small office home office soho small and medium sized businesses smbs raid levels 0 1 5 10 jbod networking gigabit 101001000 connections 1x rj 45 2x usb 30 1x usb 20 positions of connectivity ports 1x usb front