Picked up a Everdrive GB from StoneAgeGamer during his 2016 Black Friday 15% off deal for a buddy of mine. I loaded a MicroSD for him and tested it in my GB Color and fell in love with it. I have a couple other GB Flash carts but this was by far the cleanest and quickest one to get up and going. I ended up ordering one for myself in December and have not looked back.

Features taken from StoneAgeGamer

Features:
  • Game Boy And Game Boy Color games supported
  • Max. ROM size up to 8Mbyte
  • Compatible with all systems which supports GB and GBC cartridges, including Super Game Boy
  • Supported mappers: MBC1, MBC2, MBC3, MBC5
  • SRAM auto backup on SD card
  • Supported micro SD up to 32GB
  • FAT32 are supported
  • GameGenie cheat codes
  • Simple menu