Western Digital WD Purple 8TB 3.5’ Surveillance HDD 128MB Cache SATA3 WD84PURZ Capacity: 8 TB Interface: SATA Form Factor: 3.5 Inch Recording Technology: CMR Cameras supported: Up to 64 HD Drive Bays Supported: 16 Al Streams: 16 Firmware Feature Name: All Frame Tarnish resistant components: Yes Interface transfer rate (max) Buffer to host: 6 Gb/s Host to/from drive (sustained): 194 MB/s Cache (MB) 128 Reliability/Data Integrity Load/unload cycles: 300,000 Annualized workload rating: 180TB/yr Non-recoverable read errors per bits read: <1 in 10¹4 MTBF: 1,000,000 Hours Compatibility: WD Purple surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2. Dimensions (L x W x H): 147mm x 101.6mm x 26.1mm
Western Digital WD Purple 8TB 3.5’ Surveillance HDD 128MB Cache SATA3 WD84PURZ Capacity: 8 TB Interface: SATA Form Factor: 3.5 Inch Recording Technology: CMR Cameras supported: Up to 64 HD Drive Bays Supported: 16 Al Streams: 16 Firmware Feature Name: All Frame Tarnish resistant components: Yes Interface transfer rate (max) Buffer to host: 6 Gb/s Host to/from drive (sustained): 194 MB/s Cache (MB) 128 Reliability/Data Integrity Load/unload cycles: 300,000 Annualized workload rating: 180TB/yr Non-recoverable read errors per bits read: <1 in 10¹4 MTBF: 1,000,000 Hours Compatibility: WD Purple surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2. Dimensions (L x W x H): 147mm x 101.6mm x 26.1mm
in 4 offers
last seen 5 Oct 2026
The lowest price we last saw for Western Digital WD Purple 8TB 3.5' Surveillance HDD 128MB Cache SATA3 (> WD85PURZ) was $159.00 at AVI Solutions, compared across 4 retailers (last seen 5 Oct 2026). Prices may have changed since.
The all-time low we recorded was $96.68 on 9 June 2026.
Prices last updated 5 Oct 2026.
Western Digital WD Purple 8TB 3.5' Surveillance HDD 128MB Cache SATA3 (> WD85PURZ)
Western Digital WD Purple 8TB 3.5’ Surveillance HDD 128MB Cache SATA3 WD84PURZ Capacity: 8 TB Interface: SATA Form Factor: 3.5 Inch Recording Technology: CMR Cameras supported: Up to 64 HD Drive Bays Supported: 16 Al Streams: 16 Firmware Feature Name: All Frame Tarnish resistant components: Yes Interface transfer rate (max) Buffer to host: 6 Gb/s Host to/from drive (sustained): 194 MB/s Cache (MB) 128 Reliability/Data Integrity Load/unload cycles: 300,000 Annualized workload rating: 180TB/yr Non-recoverable read errors per bits read: <1 in 10¹4 MTBF: 1,000,000 Hours Compatibility: WD Purple surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2. Dimensions (L x W x H): 147mm x 101.6mm x 26.1mm
Western Digital WD Purple 8TB 3.5’ Surveillance HDD 128MB Cache SATA3 WD84PURZ Capacity: 8 TB Interface: SATA Form Factor: 3.5 Inch Recording Technology: CMR Cameras supported: Up to 64 HD Drive Bays Supported: 16 Al Streams: 16 Firmware Feature Name: All Frame Tarnish resistant components: Yes Interface transfer rate (max) Buffer to host: 6 Gb/s Host to/from drive (sustained): 194 MB/s Cache (MB) 128 Reliability/Data Integrity Load/unload cycles: 300,000 Annualized workload rating: 180TB/yr Non-recoverable read errors per bits read: <1 in 10¹4 MTBF: 1,000,000 Hours Compatibility: WD Purple surveillance storage is built to handle up to 64 cameras per drive and is designed for 24/7, always on, high-definition surveillance security systems with more than eight bays2. Dimensions (L x W x H): 147mm x 101.6mm x 26.1mm
Last updated at 05/10/2026 10:29:23
Western Digital WD 8TB Purple 3.5" Hard Drive
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive
Delivery between 14–19 Oct $22
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive (WD85PURZ)
Delivery between 8–16 Oct $10
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive (WD85PURZ)
Delivery between 8–12 Oct $10
originally posted on bvsecurity.com
As an expert in storage solutions for surveillance systems, I can attest to the exceptional performance of the Western Digital 4TB WD Purple Surveillance Internal Hard Drive. This 3.5" HDD is designed specifically for the demands of surveillance applications, and it excels in every aspect.The SATA 6 Gb/s interface ensures rapid data transfer, while the generous 256 MB cache optimizes read and write speeds. This results in smooth and uninterrupted recording and playback of surveillance footage, critical for security systems.The WD Purple series is renowned for its reliability, and this 4TB variant is no exception. It can handle the constant read and write operations required by surveillance cameras, providing peace of mind that your footage is safe and accessible ... MoreAs an expert in storage solutions for surveillance systems, I can attest to the exceptional performance of the Western Digital 4TB WD Purple Surveillance Internal Hard Drive. This 3.5" HDD is designed specifically for the demands of surveillance applications, and it excels in every aspect.The SATA 6 Gb/s interface ensures rapid data transfer, while the generous 256 MB cache optimizes read and write speeds. This results in smooth and uninterrupted recording and playback of surveillance footage, critical for security systems.The WD Purple series is renowned for its reliability, and this 4TB variant is no exception. It can handle the constant read and write operations required by surveillance cameras, providing peace of mind that your footage is safe and accessible when you need it.Whether you're upgrading an existing system or building a new one, the Western Digital 4TB WD Purple Surveillance Internal Hard Drive is a top choice that guarantees high-capacity storage, speed, and the durability necessary for security applications.
originally posted on homeessentialsdirect.com
I purchased this as a data storage/backup drive for my desktop PC. My main drive is a1TB NVME drive. The data drive I use for movies, songs, and backups and digital images. Since I am not booting with the drive I don't care about raw performance, nor will I pay for it. With that said I am VERY happy with this drive. It only spins at 5400 RPM, so the access time is slightly slower, but it makes no difference to me. Maximum transfer rate is nearly 200MB/sec. High capacity drives have dense platters and are able to pull data faster. I am a Nazi for eliminating extraneous sound and used to keep my drives inside enclosures to reduce sound. My quietest drive to date is the Samsung HD 503HI, and this is even quieter. I have several large case fans spinning slowly and if I ... MoreI purchased this as a data storage/backup drive for my desktop PC. My main drive is a1TB NVME drive. The data drive I use for movies, songs, and backups and digital images. Since I am not booting with the drive I don't care about raw performance, nor will I pay for it. With that said I am VERY happy with this drive. It only spins at 5400 RPM, so the access time is slightly slower, but it makes no difference to me. Maximum transfer rate is nearly 200MB/sec. High capacity drives have dense platters and are able to pull data faster. I am a Nazi for eliminating extraneous sound and used to keep my drives inside enclosures to reduce sound. My quietest drive to date is the Samsung HD 503HI, and this is even quieter. I have several large case fans spinning slowly and if I turn them off I can ever so slightly hear a faint humming or click, but otherwise I hear NOTHING. This is my first WD drive (have always used Samsung). I cannot speak to the drive's reliability as I've only had it for one month. It is labeled for ""Surveillance,"" so if it's meant to be running 24/7- 365 it is meant to get use in commercial/industrial environments. I think everyone with a desktop PC should adopt this system. It is very easy to backup anything important- save it to your C: drive as well as your backup E: drive or whatever. If one your main drive goes kaput you have the backup to pull your saved data from. You can use flash drives for additional redundancy and portability, but in my experience they are not so reliable.
| Interface | SATA |
| Brand | Western Digital |
| Form Factor | 3.5 Inch Drive |
| Drive Type | HDD |
| Capacity | 8 TB |
Western Digital WD 8TB Purple 3.5" Hard Drive
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive
Delivery between 14–19 Oct $22
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive (WD85PURZ)
Delivery between 8–16 Oct $10
Western Digital 8TB Purple 5640RPM 3.5in SATA Surveillance Hard Drive (WD85PURZ)
Delivery between 8–12 Oct $10
As an expert in storage solutions for surveillance systems, I can attest to the exceptional performance of the Western Digital 4TB WD Purple Surveillance Internal Hard Drive. This 3.5" HDD is designed specifically for the demands of surveillance applications, and it excels in every aspect.The SATA 6 Gb/s interface ensures rapid data transfer, while the generous 256 MB cache optimizes read and write speeds. This results in smooth and uninterrupted recording and playback of surveillance footage, critical for security systems.The WD Purple series is renowned for its reliability, and this 4TB variant is no exception. It can handle the constant read and write operations required by surveillance cameras, providing peace of mind that your footage is safe and accessible ... MoreAs an expert in storage solutions for surveillance systems, I can attest to the exceptional performance of the Western Digital 4TB WD Purple Surveillance Internal Hard Drive. This 3.5" HDD is designed specifically for the demands of surveillance applications, and it excels in every aspect.The SATA 6 Gb/s interface ensures rapid data transfer, while the generous 256 MB cache optimizes read and write speeds. This results in smooth and uninterrupted recording and playback of surveillance footage, critical for security systems.The WD Purple series is renowned for its reliability, and this 4TB variant is no exception. It can handle the constant read and write operations required by surveillance cameras, providing peace of mind that your footage is safe and accessible when you need it.Whether you're upgrading an existing system or building a new one, the Western Digital 4TB WD Purple Surveillance Internal Hard Drive is a top choice that guarantees high-capacity storage, speed, and the durability necessary for security applications.
I purchased this as a data storage/backup drive for my desktop PC. My main drive is a1TB NVME drive. The data drive I use for movies, songs, and backups and digital images. Since I am not booting with the drive I don't care about raw performance, nor will I pay for it. With that said I am VERY happy with this drive. It only spins at 5400 RPM, so the access time is slightly slower, but it makes no difference to me. Maximum transfer rate is nearly 200MB/sec. High capacity drives have dense platters and are able to pull data faster. I am a Nazi for eliminating extraneous sound and used to keep my drives inside enclosures to reduce sound. My quietest drive to date is the Samsung HD 503HI, and this is even quieter. I have several large case fans spinning slowly and if I ... MoreI purchased this as a data storage/backup drive for my desktop PC. My main drive is a1TB NVME drive. The data drive I use for movies, songs, and backups and digital images. Since I am not booting with the drive I don't care about raw performance, nor will I pay for it. With that said I am VERY happy with this drive. It only spins at 5400 RPM, so the access time is slightly slower, but it makes no difference to me. Maximum transfer rate is nearly 200MB/sec. High capacity drives have dense platters and are able to pull data faster. I am a Nazi for eliminating extraneous sound and used to keep my drives inside enclosures to reduce sound. My quietest drive to date is the Samsung HD 503HI, and this is even quieter. I have several large case fans spinning slowly and if I turn them off I can ever so slightly hear a faint humming or click, but otherwise I hear NOTHING. This is my first WD drive (have always used Samsung). I cannot speak to the drive's reliability as I've only had it for one month. It is labeled for ""Surveillance,"" so if it's meant to be running 24/7- 365 it is meant to get use in commercial/industrial environments. I think everyone with a desktop PC should adopt this system. It is very easy to backup anything important- save it to your C: drive as well as your backup E: drive or whatever. If one your main drive goes kaput you have the backup to pull your saved data from. You can use flash drives for additional redundancy and portability, but in my experience they are not so reliable.
| Interface | SATA |
| Brand | Western Digital |
| Form Factor | 3.5 Inch Drive |
| Drive Type | HDD |
| Capacity | 8 TB |
