The Power of One Seagate brings over 30 years of trusted performance & reliability to the new Seagate Desktop HDDs—now available in capacities up to 4TB. Double your capacity & drive down costs with up to 1TB-per-disk hard drive technology. SATA 6 Gb/s interface optimizes burst performance Seagate Acu Trac™ servo technology delivers dependable performance, even with hard drive track widths of only 75 nanometers. Seagate Opti Cache™ technology boosts overall performance by as much as 45%. Free Seagate Disk Wizard™ software means that you can install 3TB & 4TB hard drives in Windows, including XP, without UEFI BIOS. Best-Fit Applications Desktop or all-in-one PCs Home servers PC-based gaming systems Desktop RAID Direct-attached external storage devices (DAS) Network-attached storage devices (NAS) The Barracuda hard drive gives you one hard drive platform for every desktop storage application. One drive with trusted performance, reliability, simplicity & capacity. Seagate Opti Cache™ technology improves performance by up to 45% Seagate Acu Trac™ technology enables reliable read/write performance even in high touch operating environments Seagate Smart Align™ technology for no-hassle transition to Advanced Format 4K sector technology Barracuda hard drives give you what you want. Count on Barracuda drives to deliver the storage innovations that drive your costs down & your performance up. 7200 RPM performance–from 250GB all the way up to 3TB Opti Cache™ technology further exploits big 64MB cache sizes & enhanced micro processor capabilities SATA 6 Gb/s technology to further maximize performance Your no-hassle transition to 4K sectors. Are you worried about moving to Advanced Format 4K sector technology? You don’t have to be with Barracuda drives. Seagate Smart Align™ technology makes this transition a snap: No utilities to run No extra integration steps to take up your time Maximizes hard drive storage densities. Barracuda 1TB-per-disk technology incorporates 340, 000 unique tracks in the width of a single inch. This incredible storage density drives new capacity possibilities & lowers your total storage costs. Seagate Acu Trac™ technology enables new storage densities with accurate reading & writing to nano-sized tracks that are only 75 nanometers wide! That’s about 500 times smaller than the period at the end of this sentence