Retail Box, Hot swap Drive assembly to add to or directly replace a failed HP D9419A Hot Swap Drive, except this drive has 15,000 RPM and Extremely Low Power . Only 9 watts, half of the original! This 36.4GB 15,000RPM Low Profile (1") Hot Swap Drive has a 4MB Cache and a Ultra320, Ultra160, Ultra3 and Ultra2 interface compatable with all HP Netservers with low profile hot swap shelves. Formatted Capacity: 36.7GB Interface Type: 80-pin Ultra3 SCSI Formatted Internal Transfer Rate (Min.): 57MB/sec Formatted Internal Transfer Rate (Max.): 86MB/sec External I/O Transfer Rate (Max.): 320MB/sec Average Seek Time Read: 3.6ms typical Default Buffer: 4MB Spindle Speed: 15000 RPM MTBF: 1,200,000 hours S.M.A.R.T. Support: Yes Warranty: 3-year HP Compatibility List Availability: Usually ships the next business day. D9419Aoi$268.45