Workbench 2.1 Compact Flash Edition by Cloanto.
Amiga OS2.1 pre-installed in a Compact Flash card. FFS format, and compatible with Kicstart 2.04/2.05 (chips ROMs or image file). With this card, you will be able to boot the Workbench 2.1 operating system from a Compact Flash card through an CF/IDE adapter (available as option).
Workbench 2.1 works on systems with a 2.04 or newer ROM. A 2.05 or newer ROM is required for IDE and PC Card (PCMCIA) support. This is the best Workbench version to expand models like the Amiga 600 to boot from hard disk or CompactFlash without needing to upgrade the ROM to the 3.x series.
Workbench 2.1 aim to provide maximum compatibility and support for legacy requirements on even the oldest Amiga models. For this reason, only some required Y2K bug fixes have been applied:
Bank Transfer
Payment systems