Firmware archive for the Hikvision DS-7208HGHI-F2 digital video recorder, 13.7 MB in RAR format. The model is an 8-channel Turbo HD DVR, and packages like this are used to restore units stuck in a boot loop, or to reflash the device after a failed update or a forgotten password. The name gives no version or hardware revision. Check the hardware version on the unit label, since Hikvision firmware is tied to the platform, and keep the original flash dump before writing.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @vinafix_bios. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.