HP 1TB 7200rpm SATA 6Gbp/s Hard Drive.HP Serial ATA Hard Drives maximize the performance of HP Business PCs by providing the technologies to meet your increasing storage demands with high-capacity drives offering superior reliability and performance. HP Serial ATA 6.0-Gb/s Hard Drives offer data transfer rates of up to 6 Gb per second doubling your interface speed over SATA 1.5-Gb/s Hard Drives.Improved protocol for enhanced data integrity.Thinner and smaller serial cables and connectors for easy routing and improved system cooling