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Synology C2 Object Storage
c2.synology.com/en-us/object-storage/overviewS3 compatible object storage, flat per TBstorage/synology-c2-object-storageJSONcomparereport an errorprovider JSON
- Free allowance
- Sold in whole-TB increments from 1 TB
- Verdict
- caveatusable, with a named limit or an unprobed read path
- Cost
- USD 7.99/TB-monthparsed from the record, in USD
- Identity
- emailcard required, phone unknown
- Binding limit
- noneno named constraint binds
- Evidence
- reported5 sources; a third party said so
- Freshness
- stale on 2026-11-05checked 2026-10-21 (inherited); stale on 2026-11-05
| Free tier | Sold in whole-TB increments from 1 TB unit TB; metered on unstated |
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| Price | $7.99/TB flat at both 5 TB and 20 TB |
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| Identity | email the account is a Synology Account, reached by email and a password or by Google or Apple sign-in, and the vendor does not list the fields of that sign-up, so whether it asks a phone number is unverified. Every subscription needs a payment method, listed as credit or debit card, SEPA direct debit and ACH direct debit |
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| Egress | 'Free data retrieval — Retrieve all the data you have stored for free every month.' Plus 'No API request or data deletion fees'. Note the retrieval-included claim is bounded by 'every month', not stated as unlimited. |
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| Per-object cap | not stated |
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| Retention | not stated |
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| Interface | s3-compatible, rclone S3-compatible |
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| Tooling | any S3 client; Synology Hyper Backup, rclone generic S3 |
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| Composes with | S3 -> AList/rclone/Cloudflare |
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| Reliability | Claims 99.999999999% durability, EU and US data centres. Synology is an established hardware vendor; no data-loss event. |
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| Parsed numbers | - price-per-tb USD 7.99 TB / month
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Evidence 5
More fields 1
| price verbatim | $7.99/TB flat at both 5 TB and 20 TB |
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Unknown values 4
- per object cap notes: the field may be stated in a source that was not read
- per object cap stated: the field may be stated in a source that was not read
- retention notes: the field may be stated in a source that was not read
- retention stated: the field may be stated in a source that was not read