While the official "MK-EMMC-Studio" is functional, the open-source community has embraced the Mk Emmc Plus V3.1 because it uses a standard USB VID/PID.
If you’ve just picked up an adapter, you likely need to unbrick a satellite receiver (like Dreambox, VU+, or Gigablue) or flash firmware directly to an eMMC chip without soldering. This little board is a staple in the satellite TV and embedded systems community. Mk Emmc Plus V3.1