If we look back over the last few years, we have seen quite a few HDD technologies emerge. From HGST, we have Helium drives on the horizon; Seagate is working very hard on SMR and WD with HAMR. Apart from those technologies, the per-platter densities of the existing HDD infrastructure have been rapidly increasing, giving us a top capacity of 4TB among today's drives.
One of the latest technologies gaining ground in the market has been the SSHD or Hybrid Drive. With hybrid drives, we typically see some sort of hot data caching algorithm coupled with NAND flash put together with a 5400RPM HDD, allowing quick access to the most frequently used files on your system.
Today, we have yet another milestone in the HDD market with the introduction of the WD Black 2 Dual Drive. The Black 2 offers on one drive what has always taken two drives or two slots in a system to accomplish. Underneath, we have a 1TB HDD with a second interconnect holding a 120GB SSD.
Specifications, Pricing and Availability
The WD Black 2 uses a SATA III interface packaged in the 2.5" form factor. Internal performance for the SSD is set at 350 MB/s read and 140 MB/s write. Over on the platter side, we have 600,000 Load/Unload cycles and a non-recoverable error rate of 1 in 1014. On the power front, we have read/write requirements of 1.8 watts with idle and sleep both using 0.9 watts.
Pricing of the WD Black 2 Dual Drive is set at $299.99 with a five-year warranty.