P3579ADon't trust your data on just any disk. Our disks are highly tested, Retail Box, Hot swap Drive assemblies, to add to or directly replace a failed HP P3579A Hot Swap Drive. Our drive is Very Low Power (compared to the original), new manufacture (not old stock). This drive is more reliable than the original. NOT BULK PACKAGE like others. This 72GB 10,000RPM state-of-the-art design Hot Swap Drive has a 8MB Cache and an Ultra320, Ultra3 and Ultra2 interface compatible with all HP LP rack Netservers. P3579-63003 original Replacement Part Number P3579-69003 original Exchange Part number 15,000 RPM, 146GB and 300GB upgrades now available! Formatted Capacity: 73.4GB Interface Type: 80-pin Ultra320/160/3/2 SCSI Formatted Internal Transfer Rate (Min.): 62MB/sec Formatted Internal Transfer Rate (Max.): 108MB/sec External I/O Transfer Rate (Max.): 320MB/sec Average Seek Time Read: 4.5ms typical Default Buffer: 8MB Spindle Speed: 10000 RPM MTBF: 1,200,000 hours S.M.A.R.T. Support: Yes Warranty: 3-year HP Compatibility List -- 15,000RPM Option available, 3.2ms! Availability: Usually ships the next business day P3579A$288.45Upgrades:: None, STD P3579Ao 73GB 10,000RPMP3579Aoi 73GB 15,000RPM(+250)P3579AoX 146GB 10,000RPM(+289)P3579AoX2 300GB 10,000RPM(+669)