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What are the minimum and maximum file sizes that can be stored on myQNAPcloud Storage?

Last modified date: 2026-05-26

Applicable Products

myQNAPcloud Storage
myQNAPcloud One
myQNAPcloud Storage Business (Coming Soon)

Maximum Single File Upload Size

Single files uploaded to myQNAPcloud storage services have the following maximum size limits:

myQNAPcloud Storage: Up to 5 TB per file. This limit will be reduced to 500 GB following the official launch of myQNAPcloud Storage Business.
myQNAPcloud One: Up to 5 TB per file. This limit will be reduced to 3 TB following the official launch of myQNAPcloud Storage Business.
myQNAPcloud Storage Business: Up to 5 TB per file.

For existing subscribers, the transition policy and effective date will be announced separately.

Uploading Files Larger Than 10 GB

The largest file that can be uploaded in a single HTTP PUT request via the myQNAPcloud portal is 10 GB.

If you need to upload larger files, we recommend synchronizing your data from QNAP devices to myQNAPcloud storage using HBS3 or HybridMount. These applications support multipart upload to significantly reduce upload failures.

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