Western Digital Purple Pro Surveillance 22 TB Hard Drive - WD221PURP

WD Purple Pro 22 TB (WD221PURP) is a surveillance hard drive aimed at more serious systems – from large DVR/NVR recorders to servers for security cameras. You get a huge capacity of 22 TB in a standard 3.5" form factor, ready for 24/7 operation in an environment with many video streams. The combination of 7200 rpm and large 512 MB cache makes it stable for continuous recording and parallel review of recordings. The SATA3 6 Gb/s interface ensures seamless integration with most modern surveillance systems.

What you get is a drive designed to handle long hours of uninterrupted recording from multiple cameras without "buckling" under load. 22 TB capacity means a serious archive of high-resolution video – convenient if you want to keep data longer for checks and audits. 7200 rpm rotation plus 512 MB cache help the recording to be smooth, and the search and review of old recordings to be faster, especially when several users are pulling footage simultaneously. The standard 3.5" form factor and SATA3 interface facilitate upgrading existing DVR/NVR or desktop-based surveillance servers. With 36 months warranty, you have a decent time horizon for professional use.

• Drive for surveillance, optimized for 24/7 recording from cameras, instead of typical desktop load with interruptions.
• Giant capacity of 22 TB, suitable for long-term storage of video archives from many high-resolution cameras.
• Speed of 7200 rpm for faster access to recordings and more stable continuous recording under high load.
• 512 MB cache memory for smoother processing of multiple simultaneous streams and fewer delays when reviewing recordings.
• Interface SATA3 6 Gb/s, compatible with modern DVR/NVR, NAS, and server boards, with easy integration and upgrade.
• Standard 3.5" form factor and dimensions 26.1 x 101.6 x 147 mm, suitable for most cases and recorders.
• Weight 0.670 kg – typical for a high-capacity 3.5" drive, without surprises for mounting in trays and rails.
• 36 months warranty, which is an important plus for 24/7 load in a professional environment.

Who it's suitable for: if you're building or expanding a serious surveillance system – business, warehouse, hotel, office with many IP or analog cameras – this drive is a logical choice. It's also suitable for NAS solutions focused mainly on video archive, rather than mixed file services. It's not the most sensible option as a main drive for gaming or office PC – you pay for features that make sense mainly for continuous recording from cameras.

The strongest here is the combination of 22 TB capacity, 7200 rpm, and 512 MB cache, specifically aimed at surveillance load – if you want to collect many days of recording without compromise, this Purple Pro is exactly for such a role.