18TB CCTV Hard Drives | CCTV Master Storage
3 products in our Storage range — trade-grade UK stock from CCTV Master.
18TB hard drives for CCTV storage
This range covers three 18TB 3.5" SATA drives for recording systems that need large capacity: the Toshiba MG Series Enterprise drive (7200RPM), the Toshiba N300 NAS drive (7200RPM, 3.5" SATA), and the Western Digital WD180EMFZ (5400RPM, 3.5" SATA internal HDD).
More storage means more days of recorded footage before older clips are overwritten, so a single 18TB drive can suit systems running several cameras continuously or many cameras on motion-only recording.
How to choose
- Workload type: the Toshiba MG Series is built as an enterprise drive, aimed at continuous, high-duty-cycle use such as a DVR/NVR running around the clock.
- NAS vs internal use: the Toshiba N300 is designed for NAS enclosures, useful if your recorder or storage box is NAS-based.
- Rotational speed: the two Toshiba drives spin at 7200RPM, while the WD180EMFZ runs at 5400RPM — worth checking against your recorder's supported drive speeds.
- Interface: all three use 3.5" SATA, so confirm your NVR or PC has a free 3.5" SATA bay before buying.
Check your recorder's maximum supported drive capacity before fitting an 18TB disk, as older DVR/NVR models can have lower limits.
18TB — frequently asked questions
How much CCTV footage can an 18TB drive store?
This depends on camera resolution, frame rate, number of cameras, and whether recording is continuous or motion-triggered, so there's no fixed figure — check your recorder's storage estimator if it has one.
What's the difference between the Toshiba MG Series and N300 drives?
The MG Series is built as an enterprise drive for continuous, high-duty-cycle use, while the N300 is designed specifically for NAS enclosures; both spin at 7200RPM.
Does drive speed (RPM) matter for CCTV recording?
It can affect how quickly data is written and read; the WD180EMFZ runs at 5400RPM versus 7200RPM for the two Toshiba drives, so check your recorder's requirements before choosing.
