The drive is similar in design to the other Seagate Backup Plus Fast drives except this drive is noticeably thicker and only available in black. The enclosure is comprised of metal at the top and bottom with plastic on the sides and has one activity LED which lights up when plugged in and can be turned on or off using
The reason this drive is thicker is because you have two 2TB Samsung M9T drives inside which are considered the thinnest 2.5 inch drives available to date at only 9.5mm compared to the standard 12.5mm. The drives have 32MB cache each and spin at 5400rpms and are connected to each other via an adaptor that has two
On the drive is a copy of
To test the Backup Plus Fast we ran CrystalDiskMark while the drive was connected to our testbed via USB 3.0 with the Y cable providing extra power should it be needed. For comparison we used a 1TB Seagate FreeAgent Go Flex drive also plugged into a USB 3.0 port. Here is how the 4TB Seagate Backup Plus Fast performs, followed by the 1TB Freeagent.
Thanks to its RAID 0 capabilities the sequential read and write speeds on the Backup Plus Fast were more than three times that of the older Go Flex drive. The 512K read and write was also noticeably better while the remaining two tests the results weren't as significantly different.
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