This article covers Western Digital HDD 1TB WD Purple 監視システム 3.5インチ 内蔵HDD WD10PURZ.

Overview

The Western Digital WD Purple 1TB WD10PURZ is a 3.5-inch internal hard drive purpose-built for 24/7 surveillance recording. With a 5400RPM spindle speed, 64MB cache, and SATA 6Gb/s interface, it delivers sequential read/write speeds around 145MB/s—enough for multiple high-resolution camera streams.
WD Purple drives incorporate AllFrame technology, which reduces frame loss during recording and playback, ensuring smooth video capture even under continuous write loads. This model is positioned as an entry-level surveillance HDD, balancing cost and reliability for home and small business security systems.

Compatibility Guide

The WD10PURZ uses a standard 3.5-inch form factor and SATA 6Gb/s interface, backward compatible with SATA 3Gb/s and 1.5Gb/s. It fits into any desktop drive bay or surveillance DVR/NVR slot that accepts 3.5-inch SATA drives.
Power is supplied via a standard SATA 15-pin connector. Power consumption is low—around 3.5W idle and 5.0W under load—so no special PSU is required. However, if you plan to install multiple drives, ensure your power supply has sufficient +5V and +12V capacity.
Operating system support is broad: Windows, macOS, and Linux all recognize the drive without additional drivers. Note that the drive's firmware is optimized for sequential write workloads typical of video recording, not for random I/O patterns.

Product Info

The WD10PURZ has been on the market since around 2017 and remains a popular choice for budget surveillance builds. Pricing typically falls between ¥5,000 and ¥6,000 (approximately $35–$45 USD), making it one of the most affordable 1TB surveillance HDDs available.
Warranty coverage is 3 years from Western Digital, plus 1 year from the authorized reseller (Target Japan for online retailers purchases). The drive is widely available through major electronics retailers and online stores.
Key specifications: 1TB capacity, 5400RPM, 64MB cache, SATA 6Gb/s, 145MB/s sequential read/write. Operating temperature range is 0–65°C, with shock tolerance of 30G operating and 250G non-operating.
Market positioning: entry-level surveillance HDD. It offers better continuous write reliability than the general-purpose WD Blue at a similar price, while being more affordable than the high-endurance WD Purple Pro series.

Best Use Cases

  • Home security systems: Ideal for 2–4 IP cameras recording 24/7. AllFrame technology minimizes frame drops, ensuring smooth playback when reviewing footage.
  • Small office / retail surveillance: Works well with 4–8 channel DVRs or NVRs where budget is a concern but reliability is still important.
  • Not recommended for general PC storage: If you need a boot drive or file server storage, choose WD Blue or WD Red instead. The Purple's firmware prioritizes sequential writes, so random read/write performance is lower than general-purpose drives.

Things to Consider

This drive is optimized for surveillance workloads, not for everyday desktop use. Using it as an OS drive will result in slower boot times and application loading compared to a standard HDD or SSD.
For higher-end surveillance systems with AI analytics or high frame rate recording, consider the WD Purple Pro series, which supports higher workload rates (up to 550TB/year). The standard WD10PURZ is sufficient for basic continuous recording but may struggle under heavy multi-stream analytics loads.
Competitors include Seagate's SkyHawk series, which offers similar specs and pricing. Firmware differences may affect compatibility with specific DVR models, so check your recorder's supported drive list before purchasing.

FAQ

Q: Can I use this HDD as a boot drive in my PC?
A: Technically yes, but it's not recommended. The drive is tuned for sequential writes, so random I/O performance is lower than general-purpose drives. Use it as a secondary storage drive for media or backups instead.
Q: Is it safe to run this drive 24/7?
A: Absolutely. The WD Purple series is designed for continuous operation. Just ensure adequate airflow and avoid excessive vibration to maximize lifespan.
Q: Should I choose WD Purple or WD Blue for surveillance?
A: Always choose Purple for surveillance. Blue drives are not optimized for 24/7 write workloads and may suffer from higher error rates or premature failure in continuous recording environments.

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: ターゲットジャパン
  • Fulfilled by: ターゲットジャパン
  • ASIN: B072L175ZW
  • Note: This article covers a manufacturer-made product based on Amazon listing details.