The memory card is basically compatible with the DJI Osmo Action 5 Pro, as it is a microSDXC card with UHS-I and V30 Video Speed Class, which meets the requirements of the camera. The Osmo Action 5 Pro supports microSD cards up to 1 TB, and the SanDisk Extreme PRO UHS-I V30 (256 GB) falls within this range. DJI recommends microSD cards with UHS-I and V30 for the Osmo Action 5 Pro, which this card fulfils. However, official recommendations from DJI and other sources explicitly mention the SanDisk Extreme PRO with 32 GB V30 UHS-I, while the 256 GB version with UHS-I V30 is also compatible, but is not explicitly mentioned in the list of recommended cards for the Osmo Action 5 Pro. The card is therefore technically suitable and should work without any problems.