The Astro Map and Mapping Payloads ship with this USB-C flash drive.
We recommend a USB 3.1 drive with a write speed above 50 mb/s.
The USB flash drive included will be formatted to work with Astro. In the event that you encounter issues or would like to use a different USB flash drive with Astro, format using the instructions below.
Open Disk Utilities and click on the flash drive in the sidebar.
Select the Erase option at the top of the window.
In the Format dropdown, select MS-DOS FAT and click Erase.
Once that completes, click the Eject arrow near your flash drive on the sidebar.
Open This PC to show all connected drives.
Locate the USB drive you want to use with Astro, right-click on the image, and select "Format...". A small window should open.
Select ExFat under the File System dropdown and click Start.
Once that completes, right-click on the USB drive in This PC again and select Eject.