Are you the proud owner of a Commodore 64 Ultimate? If so, here's the full set of JiffyDOS ROMs for your C64 Ultimate to provide FULL JiffyDOS emulation to your Commodore 64 Ultimate AND the internal emulated drives:

• 1 x C64 JiffyDOS
• 1 x 1541 JiffyDOS
• 1 x 1571 JiffyDOS
• 1 x 1581 JiffyDOS

*NOTE: If you use an external drive, ie. 1541-II, 1571, etc. You will need a physical ROM IC to plug in to get functionality with your 64 Ultimate. Please see my other sales for these chips.

JiffyDOS is a Disk Operating System (DOS) enhancement which gives your C-64 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.

Notes:

• This purchase provides the buyer a license to utilize the ROM overlay image on one computing device or emulation environment. Each use must have a separate license for legitimate operation.
• The image set contains all ROM images needed to JiffyDOS-equip the C64 Ultimate, including images for the C64 KERNAL as well as the virtual 1541, 1571, and 1581 drives. ROMs will be delivered in a ZIP file via messages, andprovided within 24 hours of order.
• Since this is a digital download, Once the ROMs are posted to messages, there is NO REFUNDS for the order.