And unlike dual-drive designs, WD's hybrid technology provides single-unit design homogeneity that OEM system manufacturers have long sought from the storage industry.

ENGADGET: Western Digital builds 5mm-thick hybrid hard drive, Ultrabook makers sign on early

Similar to the practice of multi-million dollar enterprise systems, WD's hybrid technology utilizes the concept of tiered storage.

ENGADGET: Western Digital builds 5mm-thick hybrid hard drive, Ultrabook makers sign on early

WD's innovative hybrid technology pairs MLC NAND flash storage for fast SSD-like data throughput and instant-on responsiveness with magnetic disks for efficient, high-capacity storage.

ENGADGET: Western Digital builds 5mm-thick hybrid hard drive, Ultrabook makers sign on early