Snowball is a petabyte-scale data transport solution that uses devices designed to be secure
to transfer large amounts of data into and out of the AWS Cloud. Using Snowball addresses
common challenges with large-scale data transfers including high network costs, long
transfer times, and security concerns
Amazon S3 Transfer Acceleration enables fast, easy, and secure transfers of files over long
distances between your client and an S3 bucket. Transfer Acceleration takes advantage of
Amazon CloudFront’s globally distributed edge locations. However, for these volumes of data
Snowball is a better choice