WD 24TB My Cloud PR4100 Pro Series Media Server with Transcoding, NAS - Network Attached Storage Model WDBNFA0240KBK-NESN Interface: 3 x USB 3.0 2 x Gigabit Ethernet 2 x Power Supply (DC in) Dimensions: 7.56 x 6.69 x 9.13 Weight: 14.03 lbs. Package Contents: NAS Ethernet cable Power supply and cable Quick Install Guide Style: 4-Bay