LaCie 5big Dual Thunderbolt-2 5-Bay RAID Hard Drive 10TB (9000510U) Capacity: 10TB Internal Storage Media: 5 x hot-swappable 7200RPM/64MB cache (or greater) hard disks Interface Transfer Rate: 20Gb/s Up to 1050MB/s speeds for 4K video editing Dual Thunderbolt 2 ports for daisy chaining Power Supply: 100-240V 50/60Hz 150W Aluminum enclosure and whisper-quiet fan Dimensions (WxHxD): 6.8 x 8.6 x 7.7 in. Weight: 16.8 lbs