Upgrade your CCTV recorder with a 12TB surveillance hard drive designed for 24/7 continuous video recording. This drive is ideal for use in DVR and NVR systems from Hikvision, Dahua, HiLook and many other compatible CCTV brands.
Unlike a standard desktop hard drive, a surveillance HDD is built for always-on recording, multiple camera streams, and the demanding environment inside security recorders. It is a smarter and more reliable choice for storing important CCTV footage.
This 12TB hard drive is a strong choice for customers who need longer recording times, more room for larger systems, or extra storage headroom for future camera upgrades and higher resolution recording.
Why choose a surveillance hard drive?
A CCTV recorder works very differently from a normal computer. It writes video footage day and night, often from multiple cameras at once. A surveillance hard drive is designed for this type of workload and is better suited to continuous recording than a standard desktop HDD.
- Designed for 24/7 surveillance workloads
- Better suited to DVR/NVR environments
- Optimised for continuous video recording
- Suitable for modern H.265 / H.265+ systems
- Supports multi-camera recording setups
Suitable for Hikvision, Dahua, HiLook and more
This 12TB surveillance hard drive is suitable for many CCTV recording systems, including:
- Hikvision DVRs
- Hikvision NVRs
- Dahua DVRs
- Dahua NVRs
- HiLook recorders
- Other compatible CCTV DVR and NVR systems
If ordered with a compatible recorder, additional drives may be installed and formatted prior to dispatch.
WD Purple or Seagate SkyHawk
We supply professional surveillance hard drives such as WD Purple or Seagate SkyHawk, depending on stock availability. Both are purpose-built for CCTV use and are trusted choices for DVR and NVR systems.
- WD Purple – designed for surveillance environments and continuous recording
- Seagate SkyHawk – built for always-on video workloads in CCTV systems
Both options are far better suited to surveillance than a normal PC hard drive.
How Much Storage Do You Need?
Use this quick guide to estimate how much storage you may need for 6MP and 8MP CCTV cameras using H.265 compression.
| Number of Cameras |
14 Days Recording |
30 Days Recording |
| 2 Cameras |
2TB – 4TB |
4TB – 6TB |
| 4 Cameras |
4TB – 6TB |
8TB – 10TB |
| 6 Cameras |
6TB – 8TB |
12TB – 16TB |
| 8 Cameras |
8TB – 10TB |
16TB+ |
These estimates assume 6MP to 8MP cameras recording at around 15fps using H.265 or H.265+. Actual storage time depends on bitrate, motion levels, scene activity, and recording settings.
Is 12TB enough? For many 6-camera to 8-camera CCTV systems, 12TB is a very practical choice for longer retention. Larger systems, higher bitrates, or extended recording targets may require 16TB or more.
Need a more accurate answer?
Use our CCTV Storage Calculator to estimate storage based on your exact camera count, resolution, frame rate and recording quality.
Key Features
- 12TB capacity for CCTV recording
- Designed for 24/7 continuous surveillance use
- Suitable for DVR and NVR systems
- Ideal for home and business CCTV
- Better suited than a normal desktop hard drive
- Suitable for many multi-camera systems
- Compatible with modern H.265 / H.265+ recording environments
- Available as WD Purple or Seagate SkyHawk depending on stock
Specifications
- Capacity: 12TB
- Type: Internal surveillance hard drive
- Form Factor: 3.5 inch
- Interface: SATA
- Application: CCTV DVRs and NVRs
- Designed For: 24/7 CCTV recording systems
- Brand Supplied: WD Purple or Seagate SkyHawk (subject to availability)
Frequently Asked Questions
What is a 12TB surveillance hard drive?
A 12TB surveillance hard drive is a hard drive designed for CCTV systems that record continuously. It is made for DVR and NVR use, not normal desktop computing.
Can I use this 12TB HDD in a DVR or NVR?
Yes. This type of hard drive is designed for CCTV recorders such as DVRs and NVRs.
Is a surveillance hard drive different from a normal hard drive?
Yes. A surveillance HDD is built for 24/7 recording and continuous video workloads. A normal desktop hard drive is usually designed for less constant use.
Is 12TB enough for my CCTV system?
For many 6-camera to 8-camera CCTV systems, 12TB is a strong all-round choice for longer retention. The actual recording time depends on the number of cameras, their resolution, frame rate, bitrate, compression and motion levels. Use our CCTV Storage Calculator for a more accurate estimate.
How many days will 12TB store?
There is no single answer. A well-optimised system may get a long amount of retention from 12TB, while larger 4K or high-motion systems may still require more storage. The best way to estimate retention is with the calculator.
Which is better, WD Purple or Seagate SkyHawk?
Both are professional surveillance drive ranges built for CCTV systems. For most customers, either is a strong option.
Which brand will I receive?
We supply either WD Purple or Seagate SkyHawk depending on stock availability. Both are professional surveillance drives designed for DVR/NVR systems.
Can this hard drive be used for Hikvision and Dahua recorders?
Yes. Surveillance hard drives like these are commonly used in Hikvision and Dahua CCTV recorders.
Can you install the hard drive before shipping?
If ordered with a recorder, the hard drive may be installed and formatted prior to dispatch.
Who is a 12TB surveillance hard drive best for?
A 12TB surveillance hard drive is a popular option for larger home CCTV systems and many business CCTV systems that need longer recording times, support for more cameras, or extra storage headroom compared with 8TB or 10TB options.
Is this good for home CCTV?
Yes. 12TB is a strong choice for larger home CCTV systems or for users who want longer video retention and more flexibility for future camera additions.
Is this good for business CCTV?
Yes. It is also suitable for many business CCTV systems, especially those needing longer retention times, more cameras, or higher resolution recording.
Need help choosing the right size?
Start with our CCTV Storage Calculator to estimate how long 12TB will last in your CCTV system.
