Toshiba N300 12TB NAS Hard Drive 3.5" SATA 7200RPM HDD

The Toshiba N300 12TB is a NAS hard drive — a disk built to run inside network-attached storage boxes rather than a desktop PC, sitting alongside other drives day and night.

What it's actually for

This drive is rated for 24/7 continuous operation, which matters if it's going into a surveillance recorder or NAS box that never gets switched off. That's a different job to a standard PC drive, which isn't built for constant duty.

Capacity and speed

At 12TB, one drive holds a substantial amount of footage or backup data before you need to think about adding more bays. It spins at 7200 RPM with a 256 MB cache buffer, which supports steady file transfer and helps when several read/write requests are happening at once — typical in a multi-camera setup writing continuously.

Fitting it into your system

It's a 3.5-inch SATA III drive, so check your NAS unit or recorder takes that form factor and interface before ordering. The N300 series is built with RAID and multi-bay NAS environments in mind, meaning it's designed to behave consistently when several of the same drives are working together — useful if you're populating a 4-bay or 8-bay enclosure and want matched drives rather than a mix.

Commonly used for NAS servers, surveillance storage, backup servers and small business network storage where large, dependable capacity is the priority.