Apricorn AHD-4RPV-320 320GB Serial ATA internal hard drive

AHD-4RPV-320, 320GB SATA HDD, 6.35 cm (2.5 ") , 7200RPM, 8MB Cache Looking to up your notebook's capacity and performance? These high performance 7,200 RPM drives can increase system performance by up to 30%, without affecting battery life

Increase your notebook’s speed and performance by up to 30% with a high performance 7,200 RPM SATA drive
Apricorn’s high performance hard drive line includes Seagate’s Momentus 320GB and 500GB capacities and Fujitsu 80GB and 160GB capacities.
Apricorn's 7200 RPM SATA drives are the fastest available hard drive for notebook computers. With a 70% faster spindle speed and a 400% larger cache over 4200 RPM drives, these drives can improve overall system performance by 30%, providing desktop performance in a notebook computer.
All of this without sacrificing battery life, as these new high performance drives draw only slightly more power than a regular 5,400 RPM drive.
The SATA/300 interface enable fast data transfers, while the impressive 7200 RPM spindle speed and 8 MB cache enhance performance. With a 4.17 ms average latency you can expect great performance.