Synology HAT3320-20T 20TB Plus Series HDD

The Synology HAT3320-20T is a 20TB 3.5-inch hard drive for compatible Synology NAS systems that need substantial capacity for shared data, backup repositories, media or longer surveillance retention. It uses conventional magnetic recording (CMR), a SATA 6Gb/s interface and a 7,200 rpm spindle speed, with a typical maximum sustained transfer rate of 295 MB/s. This capacity is best matched to NAS enclosures and RAID layouts that have been planned for large volumes, including the time required to rebuild or back them up. The HAT3320-20T is an internal drive and does not include a NAS enclosure, USB adapter or data protection service. Synology’s compatibility policy is specific to the exact host, DSM release and drive firmware; listing a drive in one compatibility table does not guarantee universal NAS support. Check the current Synology compatibility list before purchase, then configure redundancy and a separate backup appropriate to the data stored.