Click on the Upload Video button at the top right.
Enter the required fields:
Video file: We recommend uploading files in the highest available quality, up to 1080p. Currently acceptable file formats are .mov and .mp4.
Thumbnail image: This is the preview image customers will see before they begin playing the video. A thumbnail will be automatically generated for you. If you decide to replace it, use a high-quality image in either .jpg or .png format.
Video title: This is the title displayed next to your video.
Associated ASINs: Select the products relevant to this video. If your video is approved, Amazon will display it on the product detail pages of the products you selected.
Review typically takes less than a day, but it might take up to seven business days or more during peak periods.