Several professional displays and receivers use the "552" designation and highlight MP4 support in their technical guides: Sharp MultiSync ME552 Display

: It is the most popular video format because it works on nearly all devices, including Windows, iOS, smart TVs, and social media platforms. H.264 vs. H.265 :

: This 55-inch large-format display features an integrated media player.

: While primarily an audio mixer, it includes an integrated recorder that can be used in video production workflows to sync audio with video files. 2. Understanding MP4 Technology

: It specifically supports MP4 files using H.264 or HEVC/H.265 codecs.