The 4TB Purple 5400 rpm SATA III 3.5" Internal Surveillance Hard Drive from WD is designed to withstand the stresses placed on it in a 24/7, always-on, high-definition surveillance system with 16 drive bays. With support for up to 64 high-definition surveillance cameras, this 4TB hard drive can hold a large amount of data and gives you the ability to easily upgrade and expand your security system. Furthermore, AllFrame technology helps improve video capturing and reduces errors, pixilation, and video interruptions that could happen in a video recorder system.

A SATA III 6 Gb/s interface, sustained data transfer speeds of up to , and a 256MB cache all help to ensure uninterrupted data transfers. Furthermore, the drive's 300,000 load/unload cycles, annualized workload rating of 180TB per year, MTBF rating of 1 million hours, and <1 in 10¹⁴ non-recoverable read errors per bit read also help to ensure a strong operational life.

4TB Storage Capacity    3.5" Form Factor    SATA III 6 Gb/s Interface    256MB Cache    5400 rpm    Up to Sustained Data Transfers    300,000 Load/Unload Cycles    180TB per Year Workload Rating    Designed for 24/7 Surveillance    Supports up to 64 HD Cameras

With WD Purple surveillance storage, you have a hard drive engineered for high temperature, always-on surveillance systems so you can rely on quality video playback whether you're protecting loved ones or monitoring your business.

This WD Purple drive is equipped with AllFrame 4K technology, which improves ATA streaming to help reduce frame loss, improve overall video playback, and increase the number of hard drive bays supported within a NVR. AllFrame 4K technology enables high-quality recording for up to 64 cameras.

With a workload rating of 180TB per year, WD Purple is designed to handle the unique demands of modern video surveillance DVR and NVR systems.

Each WD Purple drive is optimized to support up to 64 cameras, allowing users the flexibility to upgrade or expand their security system in the future.

With an MTBF of up to 1 million hours, WD Purple is engineered for 24/7 operating in all sizes of mainstream surveillance DVRs and NVRs. With support for 16 drive bays and tarnish-resistant components, WD Purple drives deliver reliable operation in larger scale surveillance systems in harsher environments.

WD Purple drives are built with compatibility in mind, so you can quickly and seamlessly add capacity to your surveillance system. With a wide range of enclosures and chipsets supported, you're sure to find a DVR or NVR configuration that's right for you.

With WD's IntelliSeek technology, Purple drives are able to calculate optimum seek speeds. This helps keep power consumption low so ambient noise and vibrations are at a minimum.

Related Questions and Answers

Q: 1. Is the WD10PURZ a CMR HDD?

A: The WD 1TB Purple 5400 rpm SATA III 3.5" Internal Surveillance Hard Drive (OEM) BH #WEWD10PURZ is CMR.

Q: 2. Does this drive come with a sata cable and mounting screws?

A: sorry, I purchased the NVR and drives & the cable / screws were included.....

Q: 3. What is best WD 2TB drive to use with Directv HR 21-100 SATA port to increase recording capacity?

A: The WD 2TB Desktop Everyday 3.5 Hard Drive B&H # WEIDDM2 will work well for you.

Q: 4. Is there any reason to no use this in a Synology NAS?

A: The WD 10TB Purple Pro 7200 rpm SATA III 3.5" Internal Surveillance Hard Drive can be used in a NAS, but I would recommend the WD 10TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD, B&H # WE102KFBXSPM, as WD Red drives are optimized for use in NAS arrays while WD Purple drives are optimized for surveillance.

Q: 5. Can I put in a home desktop PC? Is it PnP or needs to be re-formated? Is it compatible with Windows 10?

A: Yes, it is for home desktop, it is compatible with Windows 10. It does not come formatted.

Q: 6. Can this HD be used in a NLE that requires 7200rpm? Looking to add video storage to my Edius 7.4 system. Also any special formatting required in windows 7 PC?

A: The WD Purple drives would not be suitable for a video editing system that requires a 7200 RPM or faster drive.

Q: 7. is this hard drive appropriate to mount in a Lacie Big 2 that will be constantly on?

A: It should work fine. This drive is used in surveillance equipment that is on 24-7.

Q: 8. Are these already formatted for dvr?

A: Yes, mine came formatted. Just plugged it into my NVR and it started recording immediately.

Q: 9. What are the rpm of 4tb?

A: 5400rpm. if you not using it for surveillance. get something else. or SSD....a lot faster.

Q: 10. this work with swann dvr ?

A: I believe yes. I have an older Samsung DVR that came with a 500 meg hard drive. The new 1 terabyte drive worked perfectly OK right out of the box.