# `PhoenixKit.Modules.Storage.Providers.S3`
[🔗](https://github.com/BeamLabEU/phoenix_kit/blob/v1.7.165/lib/modules/storage/providers/s3.ex#L1)

AWS S3 storage provider.

Stores files in Amazon S3 buckets using the ExAWS library.
Supports all S3-compatible services (like Backblaze B2, Cloudflare R2, Tigris).

Files under 5 MB are uploaded via `put_object` (single request).
Files at or above 5 MB use multipart upload via `ExAws.S3.upload/4`
with streaming and concurrent chunk uploads.

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*Consult [api-reference.md](api-reference.md) for complete listing*