This fourth-generation seagate savvio 10k.4 drive provides the highest capacity and best reliability available in a small form factor, 10k-rpm enterprise hard drive. this drive enables 3.5-inch to 2.5-inch form factor transition and widespread market adoption of 2.5-inch-based external storage solutions for enterprise oems, system designers and end-user organizations.the savvio 10k.4 drive reduces $/gb costs for enterprise oems and system designers by delivering up to 600gb user capacity. the savvio 10k.4 drive is the world's first enterprise drive to support 2m-hour mean time between failures (mtbf) and an annualized failure rate (afr) of 0.44 percent—a staggering 20 percent improvement over any other drive available—further extending the savvio product family's field-proven and industry-leading reliability. it also provides a head ramp load/unload feature that moves the arms and heads away from the media for improved device handling reliability.the savvio 10k.4 drive is the second generation to support 6gb/s sas, with dual-port communications to improve interface reliability, speed, data integrity and system scalability. it is also the world's first 2.5-inch hard drive to offer fibre channel interface support (4gb/s fc). designed to be energy efficient and reduce end-user cooling and energy costs, the savvio 10k.4 drive uses 50 percent less power than a 3.5-inch 15k drive. it also includes the seagate powerchoice feature for t10-compliant power management. this enables customers to tailor systems to meet user-defined performance and power consumption goals.the savvio 10k.4 drive includes a pi feature, which detects corruption of data in flight between the host system and the drive.