This article indentifies hard drive models that are confirmed to be either compatible or incompatible with the UniFi Dream Machine Pro (UDM-Pro), UniFi Protect Network Video Recorder (UNVR), and Cloud Key Gen2 Plus(CK-GEN2-PLUS).
Generally, most SATA HDDs should be compatible with Protect NVRs, as long as:
- They fit the NVR's HDD tray (i.e., 2.5" for the Cloud Key Gen2, 2.5" or 3.5" for the UDM-Pro and UNVR).
- They offer at least 128 GB of storage.
- They are designed for continuous load, or marketed as NAS or surveillance-grade.
If you have questions about a particular hard drive model or need help choosing a hard drive, please reach out to the Ubiquiti Community users for insights and recommendations.
In this article, compatible and incompatible hard drive listings will be organized according to the sections below:
UniFi Dream Machine Pro and UniFi Protect Network Video Recorder
The UDM-Pro and UNVR require the HDD to have one partition of ext4 filesystem format. If the HDD isn't pre-formatted when inserted, the device will format it to be one partition of ext4 filesystem.
Compatible Hard Drives
|
Vendor |
Series |
Model |
Capacity |
Spindle Speed |
Notes |
| Seagate | SkyHawk AI | ST16000VEZ00 | 16TB | 7200RPM | |
| Seagate | SkyHawk | ST14000VX0004 | 14TB | 7200RPM | |
| Seagate | SkyHawk | ST8000VX0004 | 8TB | 7200RPM | No middle screw, but drive fits tray. |
| Western Digital | Red PRO | WD101KFBX | 10TB | 7200RPM | |
| Western Digital | Red | WD10EFRX | 1TB | 5400RPM | |
| Western Digital | Red Enterprise | WD2004FBYZ | 2TB | 7200RPM | Only non-SMR drives are compatible |
| Western Digital | WD Gold | WD2005FBYZ | 2TB | 7200RPM | |
| Western Digital | Red | WD80EFAX | 8TB | 5400RPM | |
| Western Digital | Purple | WD81PURZ | 8TB | 5400RPM | |
| Western Digital | Purple | WD82PURZ | 8TB | 7200RPM |
Incompatible Hard Drives
|
Vendor |
Series |
Model |
Capacity |
Spindle Speed |
Notes |
| Seagate | SkyHawk | ST10000VX0004 | 10TB | 7200RPM | Does not fit drive tray. |
| Seagate | Ultrathin | ST500LT032 | 500GB | 5400RPM | Does not have bottom screws. |
| Western Digital | UltraSlim | WD5000MPCK | 500GB | 5400RPM | Does not have bottom screws and connector not fit tray. |
| Any | Any | SMR Drives | Any | Any | Drives fit tray but cause issues. |
Cloud Key Gen2 Plus
Compatible Hard Drives
|
Vendor |
Series |
Model |
Capacity |
Spindle Speed |
Notes |
| Seagate | BarraCuda | ST5000LM000 | 5TB | 5400RPM |
Incompatible Hard Drives
|
Vendor |
Series |
Model |
Capacity |
Spindle Speed |
Notes |
| Seagate | Ironwolf | ZA960NM10001 | 960GB | N/A | Does not meet Power Requirements* |
| Seagate | Ironwolf | ZA1920NM10001 | 1.92TB | N/A | Does not meet Power Requirements* |
| Seagate | Ironwolf | ZA3840NM10001 | 3.84TB | N/A | Does not meet Power Requirements* |
* The Cloud Key Gen2 Plus does not support hard drives that require a 12V supply in addition to the default 5V supply.