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Max Official Capacity: 128GB (Tested up to 128GB)
Setup / Formatting: Formatted automatically inside the Security App
Minimum Speed Class: Class 10 / U1
Technical Note: App firmware caps microSD cards at 128GB and requires High Endurance flash for 24/7 recording.
⚠ Manufacturer Warranty Notice: Western Digital specifically excludes continuous recording (dashcam and CCTV use) from standard consumer card warranties. Only dedicated High Endurance and MAX Endurance models are covered. View Western Digital / SanDisk Official Warranty Terms ↗
📋 Official Spec / Manual Source: eufy UK Official Support — What Type of microSD Card Does eufySecurity Use? ↗
Need help formatting or fixing an error? See our guides for Windows 10/11, Mac, Dashcam/Camera Card Error Fix, or Garmin Card Degraded Fix.
Get a 128GB SanDisk High Endurance microSD card (Max supported size). Eufy Outdoor Cam Pro (Solo OutdoorCam C22 / C24) uses a microSD Card rated Class 10 / U1. Don't buy a 256GB or 512GB card—most Eufy, Wyze, Yale, and Ezviz Wi-Fi cameras enforce a strict 128GB maximum limit in the app.
The official maximum supported capacity for Eufy Outdoor Cam Pro (Solo OutdoorCam C22 / C24) is 128GB (tested up to 128GB). For the best balance of price and reliability, our recommended sweet-spot size is 128GB.
64GB ≈ 6 days 24/7 (or 2+ months motion clips) • 128GB ≈ 12 days 24/7 (Max supported size). Choosing 128GB gives plenty of headroom without overpaying.
Cards larger than 128GB will often fail to format in the security app. Standard consumer cards (such as SanDisk Ultra) are not built for continuous loop recording and wear out quickly. Crucially, Western Digital's official warranty terms explicitly exclude dashcam and surveillance use on standard consumer cards (only dedicated High Endurance and MAX Endurance models are covered by warranty). App firmware caps microSD cards at 128GB and requires High Endurance flash for 24/7 recording.
Setup requirement: Formatted automatically inside the Security App. Insert the microSD card while the camera is powered down. Once powered on, open the camera's mobile companion app (e.g. Tapo or Eufy app), navigate to Storage Settings, and tap 'Initialize' or 'Format'.
Yes. Unbranded or counterfeit marketplace cards frequently spoof their capacity or fail to sustain Class 10 / U1 write speeds, leading to corrupted recordings or 'Card Error' warnings. Stick to genuine, branded cards from a reputable retailer to ensure full manufacturer warranty coverage.
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