# minna-caos > Content-Addressed Object Storage server intended for usage with Minna. ## Features - resumable uploads (via [tus](https://tus.io/)) - automatic media type (“MIME type”) detection - multiple storage backends: - local filesystem - S3-compatible - FTP - Google Drive - OneDrive - direct download from the underlying storage backend (if supported) - pre-signed download and upload URLs - named storage buckets - object operations: - upload - set target buckets - delete - outgoing webhooks