WD Purple 4TB CMR 3.5" Hard Drive, 128MB Cache, SATA 6Gb/s

Video surveillance systems

Product reference: KOHDWD44PURZ

Designed for 24/7 surveillance systems – optimized for continuous recording in NVR and DVR security systems.
4TB storage capacity provides ample space for long-term video recording.
CMR recording technology ensures stable and reliable write performance.
WD AllFrame™ technology helps reduce frame loss and improves video playback quality.
128MB cache and SATA III (6Gb/s) deliver smooth and efficient data transfer.
Supports up to 64 HD cameras and surveillance systems with up to 16 drive bays.
Compatible with most NVR and DVR recorders, including IMOU, Dahua, Hikvision and other surveillance systems.

At stores prices may vary

Price:

€239.58

€198.00 tax excl.

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Product information

WD Purple 4TB Surveillance HDD – Reliable Storage for 24/7 Security Systems

WD Purple 4TB is a high-performance 3.5" surveillance hard drive designed specifically for continuous 24/7 video recording. Featuring CMR (Conventional Magnetic Recording) technology, WD AllFrame™ firmware and a SATA III 6Gb/s interface, it provides reliable recording, smooth playback and dependable operation in NVR and DVR surveillance systems. :contentReference[oaicite:0]{index=0}

Designed for Surveillance

Unlike standard desktop hard drives, WD Purple drives are optimized for security systems that record around the clock. WD AllFrame™ technology helps reduce frame loss and improves video recording reliability.

Designed for 24/7 operation
CMR (Conventional Magnetic Recording)
WD AllFrame™ technology
Supports up to 64 HD cameras
Compatible with systems containing up to 16 drive bays

Reliable Performance

With 4TB of storage capacity, a SATA III interface and 128MB cache, WD Purple delivers stable performance for continuous surveillance recording.

4TB storage capacity
128MB cache
SATA III (6Gb/s)
5400 RPM spindle speed

Ideal for NVR & DVR Systems

WD Purple is compatible with surveillance recorders from IMOU, Dahua, Hikvision and many other manufacturers, making it an excellent choice for home and professional CCTV installations.

Key Features

Purpose-built for surveillance systems
24/7 continuous operation
CMR recording technology
WD AllFrame™ optimized firmware
4TB capacity
128MB cache
SATA III (6Gb/s) interface
3.5" form factor
Compatible with most NVR and DVR recorders

Specifications

Parameter	Specification
General	Manufacturer: Western Digital Series: WD Purple Model: WD44PURZ Drive Type: Internal HDD Application: Surveillance Systems
Storage	Capacity: 4TB Recording Technology: CMR (Conventional Magnetic Recording)
Performance	Rotational Speed: 5400 RPM Cache Memory: 128MB Interface: SATA III (6Gb/s) Maximum Transfer Rate: Up to 175MB/s
Compatibility	Form Factor: 3.5" Supports up to 64 HD cameras Supports systems with up to 16 drive bays WD AllFrame™ technology
Reliability	24/7 Continuous Operation Workload Rating: Up to 180TB/year MTBF: Up to 1,000,000 hours
Operating Conditions	Operating Temperature: 0°C to +65°C Storage Temperature: -40°C to +70°C
Physical	Dimensions: 147 × 101.6 × 26.1 mm Weight: 550g
Warranty	3-Year Limited Warranty

Features

Capacity

4 TB