The Blackvue DR600, DR650, and DR750 dash cams are now officially certified to support Micro SD cards of up to 128GB. With the Full HD front and rear dual-channel DR750LW that means almost 30 hours of footage, or over 40 hours with the single channel Full HD DR600GW. This is a retroactive certification, meaning if you had purchased one of these dash cams, they are now certified to support the 128GB card.
Remember, these cameras are equipped with a great on-device formatting feature, simply hold down the WiFi button and the device will handle the rest. We always recommend regular formatting of the SD card about once a month to ensure the best performance from your dash cam.