WD SE WD4000F9YZ — 4 TB 3.5-inch Internal HDD (SATA-600, 7200 rpm, 64 MB)

WD SE WD4000F9YZ is a 3.5-inch internal hard drive offering 4 TB of storage capacity. It uses a SATA-600 interface, spins at 7200 rpm and includes a 64 MB buffer/cache for improved data throughput. Compactly specified for systems requiring a high-capacity, high-speed internal HDD: model WD4000F9YZ, 4 TB, 3.5-inch, SATA-600, 7200 rpm, 64 MB buffer.