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.

Western Digital Purple 4tb Surveillance Hard Drive Sata

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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R9374

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Lock in flawless surveillance storage — don’t let your security fall behind!

MULTI BAY READY - Supports 8+ bays for scalable, professional-grade NVR setups
TRUSTED RELIABILITY - Backed by Western Digital’s 3-year limited warranty for peace of mind
SEAMLESS 4 K VIDEO PLAYBACK - AllFrame 4K tech reduces frame loss for crystal-clear footage
HEAVY DUTY WORKLOAD ENDURANCE - Handles up to 180TB/year—3x desktop drive durability
UNMATCHED SURVEILLANCE STORAGE - 4TB capacity tailored for nonstop video recording

The Western Digital Purple 4TB Surveillance Hard Drive is engineered specifically for modern video surveillance systems. Featuring AllFrame 4K technology, it ensures smooth, frame-loss-free video playback and supports heavy workloads up to 180TB per year, triple that of standard desktop drives. With SATA 6 Gb/s interface and compatibility with multi-bay NVRs, it offers scalable, reliable storage backed by a 3-year limited warranty.

Specifications

ASIN	B0C4X6RDV8
Best Sellers Rank	#18,973 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #44 in Internal Hard Drives
Box Contents	Internal Hard drive
Brand Name	Western Digital
Cache Memory Installed Size	256
Color	Purple
Compatible Devices	Desktop
Customer Package Type	Standard Packaging, Amazon Frustration Free
Customer Reviews	3.6 3.6 out of 5 stars (1,912)
Digital Storage Capacity	4000 GB
Enclosure Material	Aluminium
Form Factor	3.5-inch
Global Trade Identification Number	00718037898308
Hard Disk Form Factor	3.5 Inches
Hard Disk Interface	Serial ATA-600
Hard Disk Rotational Speed	5400 RPM
Hard Disk Type	Mechanical Hard Disk
Hard-Drive Size	4 TB
Hardware Connectivity	SATA 6.0 Gb/s
Importer Contact Information	RASHI PERIPHERALS PVT LTD.,RASHI COMPLEX A BLDG, SURVEY 186, DONGARIPADA, POMAN, VASAI-E,THANE, MAHARASHTRA-401208
Installation Type	Internal Hard Drive
Item Dimensions L x W x Thickness	14.7L x 10.2W x 2.6Th Centimeters
Item Type Name	Internal Hard Drive
Item Weight	550 Grams
Manufacturer	Western Digital Technologies, Inc, Western Digital UK Ltd, 60 Moo 8, Sethakij Rd., Klong Madeua Kratoom Bean, Samut Sakhon 74110, Thailand.
Manufacturer Contact Information	Western Digital UK Ltd, 60 Moo 8, Sethakij Rd., Klong Madeua Kratoom Bean, Samut Sakhon 74110, Thailand.
Manufacturer Part Number	WD43PURZ-SPBWPY0
Model Name	WD Purple HDD
Model Number	WD43PURZ
Network Connectivity Technology	SATA
Number of Items	1
Packer Contact Information	Calcomp Electronics Public Co., Ltd. 60 Moo 8, Sethakij Rd., Klong Madeua Kratoom Bean, Samut Sakhon 74110, Thailand.
Product Features	Portable
Read Speed	180 Megabytes Per Second
Specific Uses For Product	Business
UPC	718037898308
Unit Count	1 Piece
Warranty Description	3 year Limited warranty

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R9374

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.