4 TB Hard Disk Drives

The 4 TB drives here are all SATA and split by job. For desktop PCs: the WD Blue WD40EZAX and Seagate BarraCuda ST4000DM004, both 3.5 inch, 5400 RPM with 256MB cache. The BarraCuda ST4000LM024 is the one 2.5 inch model. For NAS units: the Seagate IronWolf ST4000VN006 and Synology HAT3300 Plus at 5400 RPM, and the IronWolf Pro ST4000NT001 and Synology HAT5320 Enterprise at 7200 RPM. For CCTV: the Seagate SkyHawk ST4000VX016, which supports up to 64 HD cameras.

Choose by where the drive will run. A desktop drive suits game libraries, backups and media in a PC. The two desktop models also have their own Desktop Hard Drive page, and the WD drive has a WD 4 TB HDD page. The NAS drives are built for multi-bay storage: IronWolf models add IronWolf Health Management, the HAT3300 Plus is 100% CMR with up to 1.2M hours MTBF, and the HAT5320 is rated at 2.5M hours MTBF and a 550TB/year workload. The 7200 RPM Pro and Enterprise models also add speed, up to 281 MB/s on the HAT5320. Warranty follows the range: 2 years on WD Blue and BarraCuda, 3 years on IronWolf, SkyHawk and HAT3300 Plus, 5 years on IronWolf Pro and HAT5320.

Frequently asked questions

Will the 4 TB laptop drive fit my laptop? The ST4000LM024 is 15 mm thick, while most laptops take 7 mm drives, so check the bay first. It also suits external enclosures.

Can a desktop drive go in a NAS? It will work, but the IronWolf and Synology HAT drives are made for NAS units, with health management on IronWolf and higher MTBF ratings on the HAT models.

Which drive suits a DVR or NVR? The Seagate SkyHawk ST4000VX016, a surveillance drive that supports up to 64 HD cameras.