WD RE SAS 2TB 3.5" SATA Internal Hard Drive, 7,200RPM, SATA 6 Gb/s Interface, 32MB Buffer Size

The WD RE SAS WD200MFYYZ 2TB 3.5" SATA Internal Hard Drive delivers up to 6 Gb/s transfer rates, sustained sequential data rates of up to 171 MB/s and high random I/O rates, with a record of excellence.