This defines the resolution (1280 x 720 pixels). While not "Full HD" (which is 1080p), 720p is considered High Definition and is popular for balancing visual clarity with a smaller file size.
Given this information, the file you're discussing seems to be a 2024 movie or video titled or abbreviated as "BFMX," available in 720p resolution, encoded with HEVC for video and AAC for audio, and ripped from an HDR source. BFMX -2024- www.HDKIng.Moe 720p HEVC HDRip AAC ...
BFMX (2024) is a digital release circulated online in a 720p HEVC HDRip format with AAC audio, commonly found on file‑sharing and streaming aggregation sites such as www.HDKIng.Moe. This version targets viewers who want a high‑efficiency, visually enhanced copy suitable for devices that support HEVC (H.265) and HDR. This defines the resolution (1280 x 720 pixels)