WD Purple Pro 22TB 3.5" Surveillance HDD
The WD Purple Pro hard drive is engineered for the challenges of high-definition surveillance systems. It's not just about capacity; with 22 TB of storage, this drive is built to operate 24x7, supporting up to 64 cameras, making it the backbone of any serious surveillance setup. The drive features Advanced Format and OptiNAND technology, enhancing data integrity and system performance. Its components ensure longevity in challenging environments, while the low sound emission of 20 dB means it operates quietly. With a data transfer rate of 600 MB/s and a buffer size of 512 MB, it ensures smooth video playback and reliable recording. Energy efficiency is also a key aspect of its design, with low power consumption during read/write operations and even lower in idle, standby, and sleep modes, making it a cost-effective solution for continuous operation. The WD Purple Pro is a robust storage solution designed to meet the rigorous demands of continuous, high-definition surveillance.
The WD Purple Pro hard drive is engineered for the challenges of high-definition surveillance systems. It's not just about capacity; with 22 TB of storage, this drive is built to operate 24x7, supporting up to 64 cameras, making it the backbone of any serious surveillance setup. The drive features Advanced Format and OptiNAND technology, enhancing data integrity and system performance. Its components ensure longevity in challenging environments, while the low sound emission of 20 dB means it operates quietly. With a data transfer rate of 600 MB/s and a buffer size of 512 MB, it ensures smooth video playback and reliable recording. Energy efficiency is also a key aspect of its design, with low power consumption during read/write operations and even lower in idle, standby, and sleep modes, making it a cost-effective solution for continuous operation. The WD Purple Pro is a robust storage solution designed to meet the rigorous demands of continuous, high-definition surveillance.
The WD Purple Pro hard drive is engineered for the challenges of high-definition surveillance systems. It's not just about capacity; with 22 TB of storage, this drive is built to operate 24x7, supporting up to 64 cameras, making it the backbone of any serious surveillance setup. The drive features Advanced Format and OptiNAND technology, enhancing data integrity and system performance. Its components ensure longevity in challenging environments, while the low sound emission of 20 dB means it operates quietly. With a data transfer rate of 600 MB/s and a buffer size of 512 MB, it ensures smooth video playback and reliable recording. Energy efficiency is also a key aspect of its design, with low power consumption during read/write operations and even lower in idle, standby, and sleep modes, making it a cost-effective solution for continuous operation. The WD Purple Pro is a robust storage solution designed to meet the rigorous demands of continuous, high-definition surveillance.
The WD Purple Pro hard drive is engineered for the challenges of high-definition surveillance systems. It's not just about capacity; with 22 TB of storage, this drive is built to operate 24x7, supporting up to 64 cameras, making it the backbone of any serious surveillance setup. The drive features Advanced Format and OptiNAND technology, enhancing data integrity and system performance. Its components ensure longevity in challenging environments, while the low sound emission of 20 dB means it operates quietly. With a data transfer rate of 600 MB/s and a buffer size of 512 MB, it ensures smooth video playback and reliable recording. Energy efficiency is also a key aspect of its design, with low power consumption during read/write operations and even lower in idle, standby, and sleep modes, making it a cost-effective solution for continuous operation. The WD Purple Pro is a robust storage solution designed to meet the rigorous demands of continuous, high-definition surveillance.
in 19 offers
The lowest price for WD Purple Pro 22TB 3.5" Surveillance HDD right now is $1,160.37 at WiAutomation AU, compared across 16 retailers.
The all-time low was $743.31 on 15 Sept 2025 — today's price is 56% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 June 2026.
Last updated at 08/06/2026 07:53:50
Western Digital WD Purple Pro 22TB 3.5" Surveillance HDD 7200RPM 512MB SATA3 265MB/s 550TBW 24x7 64 Cameras AV NVR DVR 2.5mil MTBF 5yrs
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
WD221PURP Western Digital
Delivery $91.98
Western Digital 22TB Purple Pro 3.5in SATA Surveillance Hard Drive (WD221PURP)
Western Digital 22TB Purple Pro 3 5in SATA Surveillance Hard Drive WD221PURP - Desktop Hard Drives
Delivery $23.91
WD Purple Pro 3.5" Surveillance HDD - 22TB 512MB
Delivery between 10–19 June $15.90
Western Digital Purple Pro 22TB 3.5" Surveillance HDD 7200RPM 512MB SATA3 [WD221PURP]
Delivery between 11–15 June $10
[WD221PURP] WD Western Digital WD Purple Pro 22TB 3.5" Surveillance HDD 7200RPM 512MB SATA3 265MB/s 550TBW 24x7 64 Cameras AV NVR DVR 2.5mil MTBF 5yrs
7-day returns
Western Digital WD221PURP, Purple Pro Surveillance, 22TB, 3.5", SATA 6Gb/s, 7200RPM, 512MB Cache,
Delivery between 10–22 June $14.99
22tb Wd 3.5" Sata 6gb/s Purple Pro Sv Hdd Wd221purp
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Wd Purple Pro 22tb Internal Hard Drive Hdd Sata 6 Gb/s 512 Mb Cache
Delivery $51.61
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on westerndigital.com
I have a lottttt of data so I got this. I did not realize the transfer rates on 3.5inch spinning drives have gone up. With a USB 3 adapter/reader dock this was transferring over 100mbps. It makes the spinning drive sounds that these make, but it is actually quit quiet. I use it exposed versus enclosed so it is a little more clicky sounding, but sound wise, if it were enclosed, it would probably be unnoticeable. Plus, it doesn't sound that bad - I actually miss the sound of data moving around haha. I would need it to be used for years to really write on reliability as I have neevr owned these, but looking at the specs, this appears to be a similar design, if not the same drive as their commercial grade drives for business. I always try to go for the best and I take ... MoreI have a lottttt of data so I got this. I did not realize the transfer rates on 3.5inch spinning drives have gone up. With a USB 3 adapter/reader dock this was transferring over 100mbps. It makes the spinning drive sounds that these make, but it is actually quit quiet. I use it exposed versus enclosed so it is a little more clicky sounding, but sound wise, if it were enclosed, it would probably be unnoticeable. Plus, it doesn't sound that bad - I actually miss the sound of data moving around haha. I would need it to be used for years to really write on reliability as I have neevr owned these, but looking at the specs, this appears to be a similar design, if not the same drive as their commercial grade drives for business. I always try to go for the best and I take my data integrity very seriously which si why I chose this specific model. The specs that relate to reliability were the highest I could find at a reasonable price point so I am not disappointed. It actually stays quite cool as I transferred multiple terabytes worth of data at a time and it never really got hot, just warm - and this was in an open dock without a fan or active cooling. When I need to access data or write, it is very quick and never gives me trouble. I am pretty sure I will have this for years - especailly as I always get an overkill for my needs to ensure reliability and longevity.
originally posted on westerndigital.com
Great product works as expected would definitly buy again
originally posted on westerndigital.com
I purchased two 18Tb WD Purple Pro drives for a Ubiquiti NVR that I set up at a construction site. I have used these drives before with other UniFi NVRs and they work very well. I just added several additional 4K cameras so I am also adding two more drives to the system. We are using the drives for security and to document the build. I have had other WD Purple Pro drives in use for over a year on similar projects and they have been working well.
| Interface | SATA 6.0Gb/s |
| Capacity | 22TB |
| Recording Technology | CMR |
| RPM | 7200 RPM |
| Cache | 512MB |
Western Digital WD Purple Pro 22TB 3.5" Surveillance HDD 7200RPM 512MB SATA3 265MB/s 550TBW 24x7 64 Cameras AV NVR DVR 2.5mil MTBF 5yrs
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
WD221PURP Western Digital
Delivery $91.98
Western Digital 22TB Purple Pro 3.5in SATA Surveillance Hard Drive (WD221PURP)
Western Digital 22TB Purple Pro 3 5in SATA Surveillance Hard Drive WD221PURP - Desktop Hard Drives
Delivery $23.91
WD Purple Pro 3.5" Surveillance HDD - 22TB 512MB
Delivery between 10–19 June $15.90
I have a lottttt of data so I got this. I did not realize the transfer rates on 3.5inch spinning drives have gone up. With a USB 3 adapter/reader dock this was transferring over 100mbps. It makes the spinning drive sounds that these make, but it is actually quit quiet. I use it exposed versus enclosed so it is a little more clicky sounding, but sound wise, if it were enclosed, it would probably be unnoticeable. Plus, it doesn't sound that bad - I actually miss the sound of data moving around haha. I would need it to be used for years to really write on reliability as I have neevr owned these, but looking at the specs, this appears to be a similar design, if not the same drive as their commercial grade drives for business. I always try to go for the best and I take ... MoreI have a lottttt of data so I got this. I did not realize the transfer rates on 3.5inch spinning drives have gone up. With a USB 3 adapter/reader dock this was transferring over 100mbps. It makes the spinning drive sounds that these make, but it is actually quit quiet. I use it exposed versus enclosed so it is a little more clicky sounding, but sound wise, if it were enclosed, it would probably be unnoticeable. Plus, it doesn't sound that bad - I actually miss the sound of data moving around haha. I would need it to be used for years to really write on reliability as I have neevr owned these, but looking at the specs, this appears to be a similar design, if not the same drive as their commercial grade drives for business. I always try to go for the best and I take my data integrity very seriously which si why I chose this specific model. The specs that relate to reliability were the highest I could find at a reasonable price point so I am not disappointed. It actually stays quite cool as I transferred multiple terabytes worth of data at a time and it never really got hot, just warm - and this was in an open dock without a fan or active cooling. When I need to access data or write, it is very quick and never gives me trouble. I am pretty sure I will have this for years - especailly as I always get an overkill for my needs to ensure reliability and longevity.
Great product works as expected would definitly buy again
I purchased two 18Tb WD Purple Pro drives for a Ubiquiti NVR that I set up at a construction site. I have used these drives before with other UniFi NVRs and they work very well. I just added several additional 4K cameras so I am also adding two more drives to the system. We are using the drives for security and to document the build. I have had other WD Purple Pro drives in use for over a year on similar projects and they have been working well.
Great HDD compatibility with Unifi UNVR. It is a go
| Interface | SATA 6.0Gb/s |
| Capacity | 22TB |
| Recording Technology | CMR |
| RPM | 7200 RPM |
| Cache | 512MB |
