ADATA SPEED PLUS microSDXC UHS-I U3 Class 10 Card Overview
If you are not familiar with the microSDXC form factor it is going to be your smaller card typically found in drones, action cameras, and even smart phones. All of my action cameras take this type of card and so do my security cameras. On the front of the card it lets us know the capacity, which in our case is 256GB. ADATA will offer this card in 64GB, 128GB, and 512GB versions as well. It is worth noting that the 64GB card is slightly slower than the rest with speeds of 160MB/s and 140MB/s read and write compared to the 180MB/s and 160MB/s of the rest.
This card is UHS-I U3 and V30 rated so it will be able to handle recording 4K video and doing burst mode photography no problem. It is also A2 rated meaning it can handle up to 4000 IOPS random read and 2000 IOPS random write. This also means it will be a great card for mobile gaming consoles and smartphones.
Performance Testing on the ADATA SPEED PLUS microSDXC UHS-I U3 Class 10 Card
When it comes to a memory card the best way to test it is out in the field. I actually used this card with my DJI Osmo Pocket 3 camera for a month-long trip across South East Asia and Taiwan for Computex 2026. I recorded all of my content in 4K60 with a high bitrate and this card had no issues keeping up at all. It was great to have a reliable card on this trip!
I also did a quick performance test using CrystalDiskMark to show you the speeds of the card as well.
As you can see the card performed pretty much right up to the specifications.