You can use SD cards to back up data on your Surface or increase the storage capacity of your device. For information on what type of SD card is supported on your Surface, see below:

Surface Laptop modelsand Surface Pro X models don't have a built-in SD card reader.

The Sony A9, A7RIII, and new A7III all have two SD card slots in them: one is UHS-I and the other is UHS-II. Using a UHS-II card in the cameras offers no advantage for video currently, but there are rumors that 4k60p may be turned on via a firmware update for some or all of these cameras at some point in the future, and that will most likely. The camera supports SD, SDHC, and SDXC memory cards, including SHDC and SDXC cards compliant with UHS-I. Cards rated UHS Speed Class 3 or better are recommended for movie recording; using slower cards may result in the recording being interrupted. When choosing cards for use in card readers, be sure they are compatible with the device.

Surface Pro 4 or later models and Surface Go models have a microSD card slot capable of reading and writing SDXC cards with UHS-I read/write speeds.

Surface Studio models have a full-size SD card interface capable of reading and writing SDXC cards with UHS-I read/write speeds.

Surface Book models have a full-size SD card interface capable of reading and writing SDXC cards with both UHS-I and UHS-II read and write speeds.

Sdxc Slot With Uhs-i Support Drivers

Note: If your device doesn't have an SD card reader or you need faster read and write speeds, you can use a USB card reader.