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WD 4 TB Surveillance Hard Drive - Purple

WD 4 TB Surveillance Hard Drive - Purple

Q: What is the RPM platter spin speed?5400?7200?Thanks for any input.

Clearly its 5400 RPM. The 7200 RPM drives run too hot and would not be a good choice for this application.

Q: why does it say it has no space?

Your computer has to be set to recognize it as a drive. Until this is done, it is not usable and thus will show “no space:”. The method to do this varies slightly from OS to OS, so I suggest looking up “how to add a hard drive” for your specific OS.

Q: I want to replace the hard drive on my Lorex security system, do I need to format this drive after purchasing it?

Yes you will but I advise getting another brand. My 2 TB went bad in just a few weeks and was not covered under warranty due to the 30 limit I believe.

Q: Does the 8 tb model have a 128mb cache or 256mb cache? i found the product on another website, and there's is 256mb.

Western Digital sells 128MB cache and 256mb cache versions of the 8TB purple drive: https://www.wd.com/products/internal-storage/wd-purple-surveillance-hard-drive.html#WD80PURZ. Saving even several streams of high definition digital CCTV video is very low-demand from a performance perspective. It doesn't matter which version you use. Personally, though, I wouldn't buy another purple drive. I bought 8 of them and not a single one lasted through the warranty period. These drives are designed for 180TB total writing per year, or about 500GB per day, easily enough to handle an average of 10 cameras recording 3mp 24/7 but mine all failed with no more than 2 cameras storing to any single drive. Luckily, I didn't lose any critical video (had no break-ins or burglaries) between failure and replacement of these purple drives but I need better reliability than these gave me. I will have to give WD credit for replacing all of the drives that I got sent to them on time. A couple failed in a remote location a couple months before warranty ended and I couldn't get to them on time to send in so those two are on me. I've switched to all enterprise grade drives that are designed for 550 TB per year hoping to get more reliability. Search for this ASIN on Amazon for the suitable WD drive: B074WH5NPT

Product ID: 49625678

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Details

Digital storage capacity
4 TB
Hard disk interface
Serial ATA-600
Connectivity technology
SATA
Brand
Western
Special feature
temperature -
Hard disk form factor
3.5 Inches

🎥Supports 64 cameras

📊180 TB/year workload

🔥Built for high-temp 24/7 use

Description

🔒 Stay ahead of threats with storage that never blinks.

ALL FRAME 4 K TECH - Reduces frame loss and boosts video playback quality for crystal-clear surveillance footage.
UNMATCHED ENDURANCE - Handles up to 180 TB of data annually—built to keep your surveillance running nonstop.
MULTI CAMERA MASTERY - Supports up to 64 HD cameras simultaneously, perfect for comprehensive security setups.
SEAMLESS INTEGRATION - Compatible with mainstream DVRs and NVRs, making professional installation effortless.
HEAT RESISTANT RELIABILITY - Engineered for high-temperature environments, ensuring 24/7 operation without compromise.

The WD 4 TB Purple Surveillance Hard Drive is a 3.5-inch mechanical HDD designed specifically for continuous, high-definition video surveillance. With a 5400 RPM speed and Serial ATA-600 interface, it supports up to 64 cameras and can handle a hefty 180 TB workload per year. Its AllFrame 4K technology minimizes frame loss, ensuring smooth video playback, while its heat-resistant design guarantees reliable 24/7 operation in demanding environments.

Specifications

Brand	Western Digital
Product Dimensions	14.73 x 10.16 x 2.54 cm; 725.75 g
Item model number	WD40PURZ
Manufacturer	Western Digital
Series	PUR
Colour	Purple
Form Factor	3.5-inch
Standing screen display size	3.5 Inches
RAM Size	4 GB
Computer Memory Type	DDR3 SDRAM
Hard Drive Size	4 TB
Hard Disk Description	Mechanical Hard Disk
Hard Drive Interface	Serial ATA-600
Hard Disk Rotational Speed	5400 RPM
Wattage	5 watts
Are Batteries Included	No
Item Weight	726 g
Guaranteed software updates until	unknown

Have a Question? See What Others Asked

What is the RPM platter spin speed?5400?7200?Thanks for any input.

why does it say it has no space?

I want to replace the hard drive on my Lorex security system, do I need to format this drive after purchasing it?

Does the 8 tb model have a 128mb cache or 256mb cache? i found the product on another website, and there's is 256mb.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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The delivery time was excellent, and the packaging was secure.

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