HGST HUS726060ALN610 3.5" 6TB SATA 6Gb/s 7.2K RPM 128M 0F23002 4Kn ISE Air Internal Enterprise Hard Drive HGST HUS726060ALN610 0F23002 Non-volatile cache, Advanced format 4Kn Instant Secure Erase (ISE), media caching technology 6TB SATA 6Gb/s 3.5" 7.2K RPM 128 MB Cache