If your needs have a leaning more towards the professional side or you have large amounts of data (even 4TB is a LOT of data) then you may well be looking for more than just a simple back up solution. As with any hard drive, it can fail and if they do then that’s 4TB of photos, movies and documents you could potentially lose.
In these situations we would always recommend getting something with RAID for redundancy and hard drive failure protection. The G-TECH G-SPEED Studio 7200RPM Thunderbolt range of Devices available in 12TB, 16TB and 24TB are a hardware RAID 4-Bay unit with Thunderbolt 2 Storage Solution.
Fitted with 4 x 7200 RPM hard disks with super fast Thunderbolt 2 connection make the ideal storage solution. Configurable in RAID 0, 1, 5, and 10, the G-SPEED Studio offers sustained transfer rates of up to 700MB/sec and the ability to daisy-chain via dual Thunderbolt 2 ports. The solution ships with Enterprise Class Hard Drives and is designed to support multistream compressed 4K and 2K workflows.
The G-Tech G-Speed Hard Drives are very good RAID drives that we think are well worth the money.