A:AnswerHi Marianne, the SanDisk Ultra Class 10/UHS-I SDXC card can handle full-HD video recording, but it is not recommended for 4K video recording due to its U1 speed class. 4K video typically requires a faster card (U3 or higher) to sustain the necessary write speeds. If you plan to record 4K footage, we recommend a U3 or V30/V60/V90-rated SanDisk card designed for higher-speed video capture.