RAMLink extends the capabilities and compatibility of RAM expansion units for the Commodore 64 and 128 series of computers. You may also use RAMLink as a compatible RAM disk by installing RAM internally. Other benefits include built-in JiffyDOS Kernal routines, a parallel hard drive interface for the CMD HD series, an external power supply, and an optional battery backup unit. Compatibility with the widest possible range of software products has been incorporated plus many special features and the capability to expand storage space used by the system.