This will show up as drive B on the GEM desktop. It doesn't look like it has to work, it just has to be there and hooked up. For the original ST with no internal drive it'll show up as A and will be bootable.
Atari ST STFM STE 520 1040 External Floppy Drive Adapter Complete Kit For Gotek
ACSI2STM Hard Disk Drive Emulator for Atari ST/STF/STFM, STE, Mega ST with Case
SD4ST+ Mini hard disk drive HDD for Atari ST STE 2x micro SD card + RTC
Atari ST STE 520 1040 Computer 4Mb TOS v1.6 + Games + Joystick + Mouse + Bundle
Heron 4MB RAM expansion for Atari ST/STM/STFM (with universal adapter)
Atari ST 520 STFM Computer 4MB Memory TOS 1.04 PSU Recapped 720K FDD TESTED OK
