The ad says "Discontinued by manufacturer" Every ad that I have read about this cutter says "Support Corel Draw output directly". Nothing about which cutting software it would work on except WinPCsign Basic. (They have on ad) But this same company does have a regular website. Maybe contact them. Looking at Signcut software, they do support this cutter. Flexi software also supports this cutter. According to Vinyl Master list It shows this. That would have to be purchased at the VinylMaster.com website.
SK
1100H, 1100ds, 1350H, 1350ds, 1600H, 1600ds, 720H, 720ds, 850H, 850ds, JK-1100, JK-1350, JK-720
You could try it on trial Signcut Or Vinyl Master
https://www.sign-in-china.com/products/16171/24_quot_vinyl_sign_cutter_with_automatic_contour_cut_function_bluetooth_output.html
You stated you got the cutter cheap, so get yourself a good updated software to run it.