The WD Black 2’s full specifications are listed in the table above. As you can see, it’s a 2.5” drive (with a 9.5mm Z-Height) and it sports a SATA 6 Gb/s interface. The SSD portion of the drive is rated for 350MB/s reads and 140MB/s writes, which are relatively low numbers by today’s standards for an SSD. They’re much higher than any hard drive, though, and of course access times on the SSD are simply in a different league versus an HDD. The SSD is built around a JMicron JMF667H controller and NAND is 20nm MLC. The 1TB hard drive’s specs aren’t listed, but as you’ll see a little later, it’s a rather speedy, single-platter 5400RPM drive, with 16MB of cache (average latency - 5.5ms), that regularly hits over 110MB/s. To call the WD Black 2 a “dual-drive” as WD’s materials do, is somewhat if a misnomer. Yes, the drive has distinct solid state and magnetic media, but the WD Black 2 is actually recognized by a system as a single device. Out of the box, WD ships the Black 2 with the SSD portion already partitioned. This way, users know that their OS and apps are definitely installed on the fastest part of the drive. Users must run a utility which unlocks and reveals the 1TB portion of the drive. Contrary to what you may be thinking, there are no drivers or services that need to be run on the PC for the WD Black 2. Once that HDD partition is unlocked, it’s ready to go and can be manipulated as any other partition could. In fact, you could even manually repartition the WD Black 2 as one big drive, but you’ll see off behavior like this: You see, once you travel across the solid state storage and into the magnetic media, performance drops off quite a bit. Should you accidentally screw up the partitions, users can also re-run the WD utility to hide the HDD portion of the WD Black 2 again, re-configure the SSD and start over. The WD Black 2 and its Accessory Bundle Included with the WD Black 2 is the drive itself, a USB to SATA adapter, a flash drive which will automatically direct users to the download the unlocking utility, a user’s guide and warranty papers.