You must have all parts (part1, part2, etc.) in the same folder to extract the video.
Always scan downloaded .rar files with updated antivirus software before opening. To help you further, let me know: Are you having trouble extracting the files? UFC.283.720p.HDTV.2CH.x265.HEVC-PSA.part2.rar
This is the second part of a split compressed archive. ⚠️ Important Usage Notes Incomplete File: You cannot open or extract "part2" alone. You must have all parts (part1, part2, etc