Every Gloriads blog article tagged Ad specs.

Amazon stops product collection ads in February 2027. They are replaced by Sponsored Brands collections, manual or automatic, with 3 to 10 products.

Sponsored Display specs: a 50-character headline, a logo of 600×100 px or more, a 1200×628 px custom image, a 16:9 video. Every limit, with sources.

A 16:9 video of at least 1920x1080, up to 500 MB, 15 or 30 seconds, above 4 Mbps (15 for Prime Video), stereo at 192 kbps, with your logo shown 3 seconds.

Sponsored Brands are Amazon ads that show your logo, a headline and several products at the top of search results. Formats, cost, who can run them.

Yes, with at least 3 books under one pen name claimed in Author Central. What authors can show, where the click goes, and the limits for books.

Sponsored Brands video specs: 6 to 45 seconds, 1280x720 to 3840x2160, MP4 or MOV, 500 MB max, H.264 or H.265. Plus the rules that get videos rejected.
Gloriads runs your Amazon Ads by rules you control, on all four ad types.