Status: IN
DynamoDB S3 import total source size limit is 15 TB in us-east-1, us-west-2, and eu-west-1; 1 TB in all other regions (based on raw S3 object size, not uncompressed).
Source: entries/2026/03/11/amazondynamodb-latest-developerguide-S3DataImportBestPracticeshtml.md