Review on 📷 High-Performance 32GB Sandisk Extreme Pro 4K UHD Memory Card with Everything But Stromboli Card Reader - Compatible with DJI Mavic Pro, Spark, Phantom 4, Phantom 3 Quadcopter Camera Drone - UHS-1 V30 32G Micro SDXC by Dangelo Toliver

Bought two of these for DVR use. I found that many of them are slow and some videos get corrupted. I was advised to use high speed as DVRs have high resolution. I've been using it for about a week now and I'm seeing a noticeable improvement in my videos. I have never faced a corrupted video before. A bit pricey but I use another brand's ultra fast memory cards in my DSLRs and they work fine but I think they're even better. So if you're buying for in-camera use, I'd recommend them.