« Reply #14 from previous page: November 05, 2015, 09:31:56 PM »
Probably this
Epyx Reloaded Cartridge (not my auction). I've bought one of these to complement my SD2IEC since it includes JiffyDOS and gives the C64 a reset button, does what it says on the tin!
I have something in the back of my C64 that runs it at 4x speed, and has high speed DOS as well. Don't remember the name of it.

Logged
A600 2MB Chip, 4MB PCMCIA, 11MB Fast, ACA-620 OC 680EC20@25MHz, RTC, 512MB CF
A1200 - 2MB Chip 8MB Fast, MTEC Viper 68030@42MHz MMU, 68882 FPU, RTC, 1GB CF
AmigaKit A600GS
Retro Games A500 Mini
Atari 520 STFM - 1MB, Multiface ST.
Commodore 16 - 64K Mod, SD2IEC Drive
Commodore 64C - 64K, SD2IEC Drive
ZX Spectrum 48K Rubber Keys