Buffer - Buffers are holding areas for data shared by devices that operate at different speeds or have different priorities. A buffer allows a device to operate without the delays that other devices might impose.
Form Factor/Type - The physical size of the hardware components in your system. For example, the form factor for an HDD might be 2.5 inches or 3.6 inches.
Interface - An interface is the means by which two independent systems communicate. For HDDs, the interface refers to a connector that plugs your HDD into your computer so it can receive power or data.
SATA - Serial Advanced Technology Attachment. It's a type of interface that connects a storage device to your computer's motherboard — think of it like an umbilical cord because it allows data to flow between the two. SATA is measured by how fast data transfers to/from the device. There are three SATA speeds, SATA I (1.5Gb/s), SATA II (3.0Gb/s or ATA-300) and SATA III (6.0Gb/s or ATA-600).
Spindle speed - The rotational frequency of the hard drive platter, measured in revolutions per minute (RPM). Spindle speed affects how fast the hard drive delivers data.
WD VelociRaptor hard drive delivers maximum speed and reliability for performance enthusiast systems, workstations, and low-end servers. With a superbly engineered combination of 10,000 rpm spin speed, SATA 6 Gb/s interface and a 32 MB cache, this drive is truly an evolution in performance.
Rock-solid reliability Designed and manufactured to mission-critical enterprise-class standards to provide enterprise reliability in high duty cycle environments. This drive has the highest available reliability rating on a high-capacity SATA drive.
Ultra-cool operation It consumes no more power than the previous generation WD VelociRaptor while offering double the capacity and higher performance.
Rotary Acceleration Feed Forward (RAFF) It optimizes operation and performance when the drives are used in vibration-prone, multi-drive chassis.
NoTouch ramp load technology The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
Environmentally conscious In addition to being ROHS compliant, this WD VelociRaptor is also a halogen free design.