The WD Blue family of mainstream 5400 RPM drives is designed for less strenous use at home and in the office. Like their now-discontinued WD Green family, the emphasis is on reduced power consumption , thermal output and cost, instead of high performance. That changes with the SSHD variant, which pairs a regular WD Blue drive with an 8 GB SSD. These hybrid drives are able to offer pseudo-SSD performance with the storage capacity and lower cost of regular hard disk drives. Today, we will look at the 4 TB Western Digital Blue (WD40E31X) SSHD. It is currently the only 3.5" drive of the WD Blue SSHD family. The other member of the WD Blue SSHD family, at this moment, is the 1 TB WD Blue SSHD, which is a 2.5" drive for notebooks. Our review of that mobile drive will be coming up shortly. In the meantime, here is our review of the 4 TB Western Digital Blue (WD40E31X) SSHD. Link : 4 TB Western Digital Blue Solid State Hybrid Drive (SSHD) Review
