can it replace older hhd in nightowl dvr

Yes. This hard drive is compatible with all recording units.

What is the difference between 3tb purple wd30purz and wd30purz, very confusing?

Absolutely nothing. They are the same.

Is this compatible with annke surveillance camera system 8ch 1080p lite h.264+ dvr with (8) hd 1080p outdoor weatherproof cameras cctv security camera

As the owner of South Jersey Surveillance Systems, I can assure you that any WD purple or Seagate Skyhawk hard drive is the appropriate type of storage drive for any and all DVRs and NVRs.

Whats the difference between this and the red plus?

WD Blue HDDs are mainly used for general purpose storage, they are great all-rounders, and an average user can’t go wrong with Blue. WD Green is basically same as Blue, but it lacks a bit of performance. However, it is the most eco-friendly HDD, and it’s quite cheap. WD Blacks are for pure performance including gaming, media, and content creation. Also one of the most expensive HDDs. WD Red is a NAS drive. It’s optimized for NAS systems. WD Purple is for surveillance. Advised for 24/7 operation. WD Gold, probably the most premium of all. Made for a multitude of Datacenter-specific applications.

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Description

🎥 Capture every moment flawlessly with WD Purple – the heartbeat of your surveillance system!

ALL FRAME TECHNOLOGY - Reduces video frame loss and enhances smooth playback for crystal-clear surveillance footage
SEAMLESS COMPATIBILITY - Plug-and-play with a wide range of DVR and NVR systems to effortlessly expand your security setup
HIGH WORKLOAD ENDURANCE - Handles up to 180TB/year workload—3x more than typical desktop drives, built for nonstop video recording
TRUSTED BRAND ASSURANCE - Backed by Western Digital’s 3-year limited warranty for peace of mind in critical surveillance storage
SURVEILLANCE GRADE RELIABILITY - Engineered for 24/7 operation in high-heat, vibration-prone NVR environments

The Western Digital Purple 2TB Surveillance Hard Drive is a 3.5-inch SATA-600 mechanical HDD designed specifically for continuous, high-definition video surveillance. Featuring AllFrame technology to minimize frame loss and a robust 5400 RPM speed, it supports heavy workloads up to 180TB/year. Built to withstand heat and vibration in NVR environments, it ensures reliable, seamless integration with various security systems and comes with a 3-year limited warranty.

Specifications

Brand	Western Digital
Manufacturer	Western Digital (UK) Ltd, Western Digital UK Ltd, 60 Moo 8, Sethakij Rd., Klong Madeua Kratoom Bean, Samut Sakhon 74110, Thailand.
Series	WD Purple HDD
Colour	Purple
Form Factor	3.5-inch
Item Height	1.03 Inches
Item Width	4 Inches
Product Dimensions	14.71 x 10.16 x 2.62 cm; 449.06 g
Item model number	WD23PURZ-SPC5HY0
Hard Drive Size	2 TB
Hard Disk Description	Mechanical Hard Disk
Hard Drive Interface	Serial ATA-600
Hard Disk Rotational Speed	5400 RPM
Are Batteries Included	No
Included Components	Internal Hard drive
Manufacturer	Western Digital (UK) Ltd
Item Weight	449 g

Reviews

S**Y

Smart Choice

This should be the choice of smart people. Seamless performance is going on and on. 1Tb storage. Soundless. Worth the price.

6.05.2025

S**.

Defective product.. dont buy it..

The media could not be loaded. Don’t buy, the item is defective, not working with new 8 channel nvr.. raised complaint for item return.. hope so it gets returned.. checked with multiple nvr’s but its not working in any on them..

30.07.2025

N**S

One of the best hard disk drive but everyone knows that already.

Well most important thing is not to go fora cheaper product. If you handle it carefully(that is not use as an object for manhandling) then I don't see it is used up before seven or eight years. But it will tell you before it is sick temporarily or permanently.

15.03.2025

V**V

Value for money

Price range and good quality

8.05.2025

V**J

Good quality. Sometimes created noise

Working well . Nice buy

3.05.2025

F**R

Waist of money

This product is not working. And it has no return policy. This is a completely useless product sent to me

19.05.2025

K**I

WD Purpul

This product is enough storage capacity for two months data.

2.03.2025

B**H

Good

Till now working fine

6.03.2025

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