Centurion technologies - If you are looking for a convenient way to connect your Atari ST/F/FM/E to a VGA monitor, while having a possibility to easily switch between Low/Med and High resolutions,
Atari 260/520/1040ST/ MegaST VGA adapter se zvukem - SINTECH-SHOP.CZ
ATARI ST VGA FEMALE MONITOR ADAPTER WITH SOUND AUDIO JACK COLOUR 15GHZ ONLY | eBay