This adaptor was often supplied with the A4000 and A4000T as well as Commodore 1950 and 1960 monitors. It allows the connection of monitor's with HD15 connectors (such as most SVGA monitors), directly to the Amiga's RGB port. It does not perform scandoubling or flickerfixing therefore you must ensure video modes are compatible with your monitor. Commodore made at least two version of this dongle. Revision 1 adaptors are reported not to work with video toasters but this is fixed in later revisions.