VIC-II Kawari is a hardware replacement for the VIC-II chip in Commodore 64 computers. It is compatible with the original VIC-II chips and offers additional features. The board can replace all functions of a VIC-II chip, including video output, light pen interrupts, and CPU clock source. There are three PCB designs available, ranging from $30 to $80 in cost. Depending on the board design, various video output options are available, such as DVI, analog RGB, and Luma/Chroma. The board can be configured to support different video options. However, there are limitations and considerations regarding video quality and compatibility with older monitors and TVs. Some modifications may be required for the installation of the board on certain motherboard revisions.
https://github.com/randyrossi/vicii-kawari