Home Surveillance

Reliable video storage to protect what matters most

Worry-Free Recording for Home Security

WD Purple and SanDisk High Endurance microSD cards bring the same trust, reliability, and innovation you expect of Western Digital into your smart home surveillance systems. Capture the footage you need when you need it, with up to 20,000 hours of recording.1

These cards boast plenty of performance and endurance, too, with Class 10, U3, and V30 ratings2 so you can record full HD or 4K and the ability to withstand extreme weather, water, and shocks.

Typical Home Surveillance System

A typical home surveillance system, like the one illustrated here, may include cameras from a variety of smart home devices, from a smart video doorbell to security cameras. All of these cameras record video footage locally or to the cloud.

Featured Products

With high-endurance microSD cards from Western Digital as your primary storage or local backup, you can rest assured that your smart home surveillance system has reliable storage to help capture crucial footage when it happens. Depending on whether recording is triggered by motion or continuously recording, see our recommendations below for onboard camera storage.

Commercial Removable Storage


SanDisk High Endurance microSD Card

  • Recording in full HD or 4K, with capacities up to 256GB and read speeds up to 100MB/second
  • Temperature-proof, waterproof, shockproof, and x-ray-proof
  • Ideal for home surveillance systems, smart home wireless video doorbells, and other consumer smart video applications
Commercial Removable Storage


WD Purple SC QD101 Ultra Endurance microSD Card

  • Built with advanced 96-layer 3D NAND technology
  • High performance, reliability, and endurance
  • Storage up to 1TB for greater capacity and longevity as storage-intensive use cases like 4K grow

Find the smart video storage solution for your needs

1. Actual hours of video saved less. Up to 20,000 hours for 256GB; 10,000 hours for 128GB; 5,000 hours for 64GB; and 2,500 hours for 32GB. Full HD video only; total hours less for 4K UHD video.
2. UHS Speed Class 3 (U3) and UHS Speed Class 1 (U1) designate performance options designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See www.sdcard.org/consumers/speed.