Below are the available bulk discount rates for each individual item when you purchase a certain amount
JiffyDOS is a Disk Operating System (DOS) enhancement which gives your VIC-20, C-64, C16, C116, +4, or C-128 the disk access speed it has always needed. A chip-for-chip replacement for the Kernal ROM in your computer and the DOS ROM in your disk drive(s), JiffyDOS achieves levels of performance and compatibility unmatched by other disk speed-enhancement products. Outstanding speed, solid compatibility with virtually all hardware and software, and a new set of desperately-needed commands and features, gives your system a new lease on life and the power to compete with today's newer, more-expensive machines.
JiffyDOS should not be confused with Cartridges, Turbo ROMs, Burst ROMs or "Parallel" systems. Ultra-high-speed multi-line serial technology enables JiffyDOS to outperform these products without any of their inherent disadvantages. JiffyDOS leaves all ports on your computer open, works with virtually all software, speeds up PRG, SEQ, REL and USR files, and does not require any extra cabling. Owning JiffyDOS also gives you access to some of the best product support available.
Note: This purchase provides the buyer a license to utilize the downloaded ROM overlay image on one computing device or emulation environment. Each use must have a separate license for legitimate operation. Please contact RETRO Innovations for bulk purchase information.
Note: This download contains both an NTSC KERNAL and PAL KERNAL image. Please use the appropriate image file based on your machine type.