Retail Box, Hot swap Drive assembly to add to or directly replace a failed HP A7287A, A7287-64201 and A7287-69001. This 146GB state-of-the-art design Low Profile (1") Hot Swap Drive is 10,000RPM and has a 4MB Cache and an Ultra320, Ultra3 and Ultra2 interface compatable with all HP Disk System DS2100 and DS2300. 15,000 RPM and 300GB upgrades now available! Formatted Capacity: 145.7GB Interface Type: 80-pin Ultra 3 and Ultra 320 SCSI Formatted Internal Transfer Rate (Min.): 43MB/sec Formatted Internal Transfer Rate (Max.): 76MB/sec External I/O Transfer Rate (Max.): 320MB/sec Average Seek Time Read: 4.6ms typical Default Buffer: 4MB Spindle Speed: 10000 RPM MTBF: 1,200,000 hours S.M.A.R.T. Support: Yes Warranty: 3-year Availability: Usually ships in 2-3 business days. A7287Ao$388.47                                             But WAIT! 300GB &15K Avail. Upgrades: None, STD A7287Ao 146GB 10,000RPMA7287Aoi 146GB 15,000RPM(+690)A7287AoX2 300GB 10,000RPM(+669)