Western Digital ? or WD, as they like to call themselves nowadays ? is expanding their range of products. The race to higher capacity storage is still active and previously we tested the 6TB-variants of the Red-, Green- and Purple-models. Today we add two new ones: the Red Pro and the Black.

WD Black is the series meant for power-users: the brand mentions photo- and video editors as well as gamers as their target audience. These are 3,5?-drives that operate at 7,200 rpm (revolutions per minute) and in this case have 128 MB cache memory. Moreover the disk is equipped with a dual-core processor as controller, which should enable higher sequential speeds.

Aside from that the Black-disks are supposed to be extra reliable. WD calls this StableTrac; this means that the motors are fixed on two places to reduce vibration of the platters. The drive comes with a five-year warranty. On average you pay 250 pounds / 316 euros for the WD Black 6TB, about 40 pounds / 50 euros more than you would for a WD Green with the same capacity.