Product Detail Ideal for servers, video surveillance, and other demanding write-intensive applications, WD RE4 7200 RPM Enterprise SATA hard drives offer massive 2 TB capacity, 64 MB cache, and 4th generation vibration tolerance. Dual processor - With double the processing power, WD RE4 boasts the highest performance of any drive in the WD RE family. Thermal extended burn-in test - Each drive is put through extended burn-in testing with thermal cycling to ensure reliable operation. RAID-specific, time-limited error recovery (TLER) - Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives. 5 year limited warranty. . The "Western Digital RE4 1.5 TB 7200rpm 3.5-Inch SATA2 64MB RAID Hard Drive WD1503FYYS" is best product for you. We recommended Western Digital RE4 1.5 TB 7200rpm 3.5-Inch SATA2 64MB RAID Hard Drive WD1503FYYS