External genlock for Amiga 500, 500-plus, 600, 2000 and 3000 (as of 1993), connects to 23 pin video socket*. Requires 512k chipmem and 512k fastmem. Kickstart 1.3 or 2.0. The genlock mixes your video signal and Amiga signal, so you can record it back to a VCR.
*Please note that the genlock has a 25pin connector that has been cut down to 23 pins.