While SSDs are by now the unquestioned performance kings when it co mes to storage, their capacities are still too low and cost-per-gigabyte st ill too high for them to displace hard drives completely. While SSDs contin ue to improve at a meteoric rate, hard drive manufacturers arent sitting s till. Today, well be taking a look at Western Digitals latest attempt at pushing back the superparamagnetic limit, the WD RE SATA 4TB drive. Whether its meant for large-capacity storage on a workstation, or as a way to exp and the capacity of a high-load NAS device, this drive is WDs current crea m of the crop for SATA drives. Lets take a look and see how it measures up.