The 4TB WD Purple 5400 rpm SATA III Surveillance Hard Drivefrom 4TB WD Purple 5400 rpm SATA III Surveillance Hard Driveis 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 this compatible with Mac Os?

A: This was made and built for a surveillance system, but you would be able to format it and use it with Mac OS.

Q: 2. iS THIS HDD COMPATIBLE WITH THE ZMODO DVR??

A: This is regular BARE drive. If your DVR requires some special embedded software, you need drive from manufacturer of DVR. It works for most of the DVRs I use for.

Q: 3. Are these already formatted for dvr?

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

Q: 4. what is the warranty on this drive?

A: Says 3 years on WD's site.

Q: 5. I have a ZOSI dvr for 8 channel. Can this work to record video from them

A: If your recorder uses 3.5 inch drives with SATA connectors, this drive should work just fine. I am 99% sure that your recorder uses SATA drives. Its industry standard. Check the owners manual for maximum supported drive capacity. I know that some recorders have drive size limits and if you install a drive that is of bigger capacity than recorder can support, you may have issues. My Lorex NVR supports two 2TB hard drives and this drive was literally plug-and-play. Good luck.

Q: 6. 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: 7. Will this hard drive only work for surveillance system?

A: This was one of the hard drives my NVR manufacture recommended. It has worked exceptionally well. I would highly recommend it but Im afraid I cant answer your question. Perhaps a computer tech would provide an answer. B&H is an excellent company with great customer service.

Q: 8. Are these wd 6tb purple, new in a sealed unopened box? This info is not indicated in specs or gen description.

A: This is a brand new, unopened product. It come sealed in an anti-static bag, bubble wrapped in an individual plain brown box

Q: 9. 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: 10. What are the rpm of 4tb?

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