amigakit.com - Amiga RGB To VGA Adapter has had a redesign with new enclosure and two page product instructions. Now available in two versions: unbuffered and buffered from Amiga Kit Amiga Store:
Amiga RGB to VGA Monitor Adapter - AMIGAstore.eu
AMiVGA - Amiga Video RGB DB23 to multisync VGA adapter. Electronica4u.com
VGA to RGB and RGB to VGA - Page 2 - English Amiga Board