Product - Western Digital VelociRaptor 300GB 10,000 RPM SATAII w/ 16MB Cache

The evolution of 10,000 RPM SATA technology.
The WD Raptor® has evolved! PC enthusiasts' favorite 10,000 RPM SATA drive is now faster than ever.

Engineered for maximum speed! WD VelociRaptor, the newest member of our unique class of 10,000 RPM SATA hard drives, combines a SATA 3 Gb/s interface and 16 MB cache, to deliver performance that's up to 35% faster than its speedy older brother.

Killer Speed - Built on the performance bloodlines of WD Raptor, these 10,000 RPM drives, with SATA 3 Gb/s interface, and 16 MB cache deliver mind-bending performance. Not only are they 35 percent faster than the previous generation WD Raptor drives, but they also beat out all other competitors in the field.

Rock-solid Reliability - Designed and manufactured to mission-critical enterprise-class standards to provide enterprise reliability in high duty cycle environments. With 1.4 million hours MTBF, these drives have the highest available reliability rating on a high capacity SATA drive.

Double the Capacity - State-of-the-art technology packs twice the capacity per disk compared to its older brother WD Raptor resulting in 300 GB of high-performance storage space in this enterprise-class 2.5-inch drive. (Not compatible with notebook computers)

IcePack™ Mounting Frame - The 2.5-inch WD VelociRaptor is enclosed in a 3.5-inch enterprise-class mounting frame with a built-in heat sink that keeps this powerful little drive extra cool when installed in high-performance desktop chassis.

Rotary Acceleration Feed Forward (RAFF™) - Optimizes operation and performance when the drives are used in vibration-prone, multi-drive chassis.

SecurePark™ - Parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long-term reliability and increased drive protection when the chassis is moved.

5-year limited warranty

Formatted Capacity	320,072 MB
Capacity	300 GB
Interface	SATA 3 Gb/s
User Sectors Per Drive	586,072,368
Performance
Rotational Speed	10,000 RPM (nominal)
Buffer Size	16 MB
Average Latency	5.50 ms (nominal)
Seek Times	Read: 4.2 ms Write: 4.7 ms (average) Track-To-Track: 0.7 ms (average)
Transfer Rates	Buffer To Host (Serial ATA): 3 Gb/s (Max) Transfer Rate (Buffer To Disk): 120 MB/s (Sustained)
Environmental
Shock	Operating (Read): 65G, 2 ms Non-operating: 300G, 2 ms
Acoustics	Idle Mode: 29 dBA (average) Seek Mode 0: 36 dBA (average)
Temperature	Operating: 5° C to 60° C Non-operating: -40° C to 70° C
Humidity	Operating: 5-95% RH non-condensing Non-operating: 5-95% RH non-condensing
Altitude	Operating: -305M to 3,050M Non-operating: -305M to 12,200M
Vibration	Operating: Linear: 20-300 Hz, 0.75G (0 to peak) Random: 10-300 Hz, 0.008 g² / Hz Non-operating: Low Frequency: 0.05 g²/Hz (10 to 300 Hz) High Frequency: 20-500 Hz, 4.0G (0 to peak)
Electrical
Current	12 VDC Read/Write: 225 mA Idle: 200 mA Standby: 6 mA Sleep: 6 mA 5 VDC Read/Write: 675 mA Idle: 425 mA Standby: 70 mA Sleep: 70 mA
Power Dissipation	Read/Write: 6.08 Watts Idle: 4.53 Watts Standby: 0.42 Watts Sleep: 0.42 Watts

5-Year Limited Warranty