HP 300GB 6G SAS 10K SFF (2.5-inch) Dual Port Enterprise Hard Drive 507127-B21 Transfer Rate Synchronous (Maximum): 6 Gb/sec Seek Time (typical reads, includingsettling): Single Track 0.20 ms,Average 4.0 ms, Full-Stroke 7.45 ms Rotational Speed: 10,000 rpm