Sorry link didn't work, its a OS colour camera with 4.2MP, 7.4micron self guiding camera with a chip 100% larger than the ST 200XCM.
Built in self guiding.
optional water cooling
fast downloads
KAI 4022CM sensor at 2048x 2048 pixels
mechanical and electronic shutter
https://www.sbig.com/images/document...ew_7.11.11.pdf