4 bay nas nas enclosure max hard drives 4 hard drive form factors 25 35 inch hard drive types hdd ssd internal interface sata target audiences home users small office home office soho small and medium sized businesses smbs connections 2x rj 45 2x usb 30 1x esata positions of connectivity ports 1x usb front 1x usb back processors intel atom c3338 dual core clock speed 1 500 mhz ram 2 gb ram type ddr4 nas cooling system fan number of fans 1