CCTV Storage Drives UK — HDDs by Capacity
38 products · prices include VAT
Pick the capacity by how many days of footage you want to keep, then check the drive is rated to run around the clock — an ordinary desktop drive is not built for that.
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38 products
Capacity
Storage here means 3.5" SATA (Serial ATA) hard disk drives, or HDDs, for CCTV recorders. The recorder saves footage to the drive, so the drive decides how many days of video you can keep.
How to choose
- Capacity: Drives run from 6TB to 16TB, with 8TB, 10TB and 12TB in between. More terabytes (TB) means more days of footage. Camera count, resolution and recording settings all affect how fast a drive fills.
- Spin speed: The Toshiba MG06ACA10TA 10TB and the Lenovo ThinkServer 6TB enterprise drive run at 7200RPM (revolutions per minute). The Western Digital WD160EDFZ 16TB, Western Digital WD120EDAZ 12TB and Seagate ST8000DM004 8TB BarraCuda Compute run at 5400RPM.
- Interface: Every drive is a 3.5" SATA model. The Toshiba is listed as SATA III, 6Gb/s, with 256MB cache.
- Continuous recording: The 8TB 3.5" SATA drive is described as suited to 24/7 recording.
Before you buy
Check that your recorder has a free 3.5" SATA bay. Then check the largest single drive it supports, which is stated in the recorder's specification.
Storage — frequently asked questions
Which hard drive capacity is right for CCTV recording?
It depends on how many cameras you have, their resolution and your recording settings. This range covers 6TB to 16TB, so you can choose more capacity for longer retention.
Are these drives 3.5" or 2.5"?
The drives in this range are 3.5" SATA hard drives. Your recorder needs a free bay and SATA connection to suit.
What does 7200RPM mean on a hard drive?
RPM stands for revolutions per minute, which is how fast the disk platters spin. Drives in this range are listed at either 5400RPM or 7200RPM.
Will my recorder accept a 16TB drive?
That depends on the recorder model. Check the maximum single-drive capacity in its specification before choosing a larger drive.
Related guides
- How Much Storage Do I Need for CCTV? UK Guide 2026Each camera needs roughly its bitrate in Mbps × 10.8 GB per day of continuous recording.
- Best NVR Recorder UK 2026: Size, Storage and PoE GuideThe best NVR recorder is the one whose channel count, total bitrate ceiling and drive bays cover your cameras and your retention period with room to spare, so…