HDD Western Digital PURPLE WD30PURZ 3TB (3.5", SATA3 6Gbps, 64MB)



HDD Western Digital RED WD20EFRX 2TB (3.5
View of the hard drive

HDD Western Digital RED WD20EFRX 2TB (3.5
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PURPLE hard drives are designed for use in CCTV systems operating in 24/7 mode. The series offers superior performance, high capacity and long-term reliability. The drives can work non-stop in systems processing and recording audio and video, especially professional CCTV systems, on any platform (NAS systems, PCs, standalone DVRs).
The PURPLE series is a further development of the RED family. The modified firmware functions minimize the risk of loss of image frames due to errors or heavy load (AllFrame), as well as the power consumption (IntelliPower).
Western Digital hard drives are recommended by all leading manufacturers of CCTV devices.
WD30PURZ drives have a much better performance than their counterparts dedicated to PCs. The special features include:
  • surveillance-class storage with minimized risk of loss of image frames
  • specially designed for the harsh 24/7 always-on, high-definition surveillance environment
  • caching algorithms tailored to the requirements of CCTV systems, characterized by a high intensity of write operations, comparatively low data rates and a large number of simultaneous data streams
  • priority change for write allocation and preemptive caching policies
  • TLER and ATA streaming support
In DVRs/NVRs using more hard drives, usually only one is recording the current video streams, the rest are in Standby or Sleep mode. The power consumption of the WD30PURZ HDD in the Standby or Sleep mode is only 0.4 W, which compared to standard hard drives is only 40% of their power consumption.
WD PURPLE hard drives are covered by a three-year manufacturer's warranty. It is important to pay attention to the writing load of 60 TB yearly. Applications requiring greater load should be supported by RED series drives.
Code M89285
Model WD30PURZ
Interface SATA 3.0
Line Purple
Capacity 3 TB
Size 3.5''
Buffer size
64 MB

Average power requirements:


4.4 W
4.1 W
0.4 W

Noise emission:

    Idle mode
    Quiet seek mode


23 dBA
24 dBA

Weight 0.64 kg
Remarks dedicated for CCTV applications


Name Western Digital 3TB 3.5" PURPLE WD30PURZ
Model WD30PURZ
Product type HDD
Manufacturer WD
Series Purple
capacity TB 3
Interface SATA III
Housing format 3.5"
Number of supported cameras max. 64 HD
Name of the relevant firmware AllFrame 4K technology
Wear-resistant components No
Interface transfer rate (max) from buffer to host Gbps 6
Interface transfer rate (max.) between host and disk MBps 145
Cache Mb 64
Speed rpm 5400
Niezawodność, integralność danych
Load factor per year TB/year 180
Mean time without failure (MTBF) H 1000000
Warranty years 3
Zarządzanie energią
Avg. power consumption read/write W 5
idle W 4,4
standby and sleep W 0,4
Parametry środowiska
Operating temperature in operation 0...65
sleep -40...70
Shock during operation (2 ms read/write) G 30
during operation (2 ms read) G 65
during storage (2 ms) G 250
Sound level idle dBA 23
searching (avg.) dBA 24
Wymiary i masa
Dimensions mm 26.1 × 147 × 101.6
Weight kg 0,64