Three cloud backup destinations Australian NAS users may consider are Backblaze B2, Synology C2, and Wasabi. Backblaze B2 and Wasabi can be used by NAS backup tools that support their S3-compatible APIs. C2 Storage integrates natively with Synology NAS; C2 OneStorage also includes the separate S3-compatible C2 Object Storage service, but compatibility with a particular non-Synology NAS application should be confirmed. The differences. Data centre locations, egress fees, per-TB costs, and how tightly they integrate with Synology or QNAP. Determine which one makes sense for your setup and budget.
In short: For Synology users, Synology C2 is the easiest setup with the best DSM integration. For Wasabi's no-egress-fee model, the Sydney region is a significant advantage for Australian users who restore data regularly. B2 is currently cheaper than the monthly C2 OneStorage and Wasabi Pay-Go rates, but C2 OneStorage’s annual 1TB+ rate has a lower monthly equivalent; currencies, tax and billing commitments differ. B2 has no Australian region; available account regions are US East, US West, EU Central and Canada East. Higher latency and egress costs for restores apply. All three can be used with customer-controlled encryption keys. Hyper Backup supports client-side encryption with an exportable private key, while Backblaze B2 and Wasabi support customer-provided SSE-C keys, subject to client compatibility.
Backblaze B2
Backblaze B2 currently starts at USD $6.95/TB/month, with free egress up to three times average monthly storage and excess egress billed at USD $0.01/GB. In AUD at current exchange rates, B2 storage costs approximately $9-10/TB/month. Backblaze B2 offers US East, US West, EU Central and Canada East account regions, but no Australian region. Australian users should expect an international network path, with the route determined by the selected region. Relevant for both upload latency and restore costs.
NAS integration: Backblaze B2’s S3-compatible API works with supported NAS backup tools that allow a custom S3 endpoint; verify client compatibility. Synology Hyper Backup, QNAP Hybrid Backup Sync, and most open-source backup clients (Duplicati, Rclone) work with B2. There is no native Backblaze package in Synology Package Centre or QNAP App Center. It connects as a generic S3-compatible target.
Restore costs for Australian users: Restoring data from B2 incurs egress charges at USD $0.01/GB (approximately $0.015 AUD/GB). A 1TB restore incurs no B2 egress charge if it remains within the account’s monthly allowance of three times average stored data; egress above that allowance costs USD $0.01/GB. For infrequent full restores, this is manageable. For workflows that regularly pull data back from cloud, egress costs accumulate only when monthly downloads exceed B2's free allowance of three times average monthly storage.
Australian considerations: B2 has no Australian storage region. Overseas storage can trigger APP 8 obligations and may conflict with particular contracts or specialised data-residency rules, but Australian law does not impose a blanket domestic-storage requirement on all healthcare, legal or accounting records. B2's Cloudflare partnership (Bandwidth Alliance) offers zero-egress-cost access when serving content via Cloudflare's CDN. Not directly relevant to NAS backup but useful for web hosting use cases.
| Storage price | USD $6.95/TB/30-day (~$9-10 AUD/TB/month at the stated exchange-rate range) |
|---|---|
| Egress (download) | Free up to 3x average monthly storage; USD $0.01/GB above that allowance |
| Data centre | regions US West (Sacramento and Phoenix), US East (Reston), EU Central (Amsterdam), Canada East (Toronto) |
| AU data centre | None. US West is closest |
| S3 compatible | Yes |
| NAS native package | No. Connects as generic S3 target |
| Minimum storage | No minimum |
| Free tier | 10GB storage + 1GB/day egress free |
Pros
- Lowest per-GB storage cost of the three services
- Broad S3-compatible client support; verify that the backup tool accepts a custom endpoint and uses supported operations
- No minimum commitment or storage fees beyond usage
- 10GB free tier for testing
Cons
- No Australian region. High latency for Australian backups and restores
- Egress fees apply only after monthly downloads exceed three times average monthly storage
- No AU data centre. Data sovereignty concern for regulated industries
- Synology Hyper Backup connects through B2’s S3-compatible endpoint, while Synology Cloud Sync and QNAP HBS 3 expose Backblaze B2 as a selectable provider.
Synology C2
Synology C2 Storage is Synology's cloud storage service for Synology NAS, designed for use with Hyper Backup and Hybrid Share. It's the easiest cloud backup option for Synology NAS users. Setup takes minutes from within DSM, and Hyper Backup provides versioning, deduplication, and scheduling that integrates directly with the Synology ecosystem.
Pricing (AUD approximate): Synology C2 Storage is subscription-based rather than pure pay-per-use. For new subscribers, C2 Storage is now included in C2 OneStorage. Published reference pricing is USD/EUR 29.99 per year for 300GB, or USD/EUR 7.99/TB monthly and 77.99/TB annually for capacities from 1TB to 200TB, before applicable taxes. (pricing varies by region and promotion, check current pricing at c2.synology.com). There are no egress fees for restores to a Synology NAS. This egress-free model is a significant advantage for users who need to restore regularly.
Data centre (AU context): Synology’s current C2 terms identify its regions as APAC-Taiwan, Europe-Frankfurt and North America-Seattle; current availability should be confirmed during subscription. No Australian C2 region is listed. There is no AU-based C2 region. Synology documentation identifies APAC-Taiwan rather than Singapore; confirm which C2 OneStorage regions are offered during subscription. Actual performance depends on the selected region and network path.
Limitations: C2 Storage for Hyper Backup requires a Synology NAS. C2 OneStorage also includes the separate S3-compatible C2 Object Storage service; confirm current QNAP compatibility before relying on it as a QNAP backup destination. C2 OneStorage’s monthly rate is higher per TB than B2 PAYG, while its annual 1TB+ reference rate has a lower monthly equivalent; currency, tax and commitment differ, but the egress-free restores and native DSM integration justify the premium for most home and prosumer Synology users. Australian Consumer Law applies to Synology C2 subscriptions purchased through Australian channels.
| Storage price | New subscribers: C2 OneStorage reference pricing of USD/EUR 29.99/year for 300GB, or USD/EUR 7.99/TB monthly and 77.99/TB annually for 1-200TB, before applicable taxes |
|---|---|
| Egress (download) | Free for restores to Synology NAS |
| Data centre | Synology documentation identifies APAC-Taiwan, North America-Seattle and Europe-Frankfurt; confirm current availability during subscription |
| AU data centre | None. Current OneStorage availability must be confirmed; Synology’s pricing page lists Frankfurt and Seattle, while other official material also identifies APAC-Taiwan |
| NAS integration | Native. Synology DSM Hyper Backup and Hybrid Share |
| S3 compatible | C2 Storage integrates natively with Hyper Backup. S3 compatibility is provided by the separate C2 Object Storage service included with C2 OneStorage. |
| Platform requirement | Synology NAS + Synology Account (free) |
| Free tier | None (trial periods available) |
Pros
- Zero egress fees. Restores from C2 to Synology NAS are free
- Native DSM Hyper Backup integration. Simplest setup of the three
- Versioning, deduplication, and incremental backup built into DSM
- APAC-Taiwan is the Asia-Pacific C2 region identified in Synology documentation; confirm current availability during subscription
Cons
- C2 Storage for Hyper Backup is Synology-only. C2 OneStorage also includes the separate S3-compatible C2 Object Storage service; verify compatibility with a particular third-party NAS application.
- C2 OneStorage’s annual 1TB+ reference price is currently USD/EUR 77.99 per TB per year, while monthly billing is USD/EUR 7.99 per TB; compare billing term, currency and tax before ranking it against B2 or Wasabi.
- No Australian data centre. Synology documentation identifies APAC-Taiwan; confirm current subscription availability
- Per-plan storage caps require upgrading plan as your backup grows
Wasabi
Wasabi Pay-Go currently costs USD $7.99/TB/month, subject to a 1TB monthly minimum and its minimum-storage-duration policy. with no egress fees and no API request fees. For Australian users, Wasabi's Sydney (ap-southeast-2) region is a significant advantage. The Sydney region keeps stored data in Australia; upload and restore performance still depends on location, routing, connection, client and workload. Regular restores do not automatically make Wasabi cheaper than B2. Compare B2's lower storage rate and three-times-storage free-egress allowance with Wasabi's Sydney region, 90-day minimum-duration policy and fair-use-limited free egress.
Pricing: Wasabi Pay-Go currently costs USD $7.99/TB/month, the same as C2 OneStorage's monthly reference rate; C2's annual 1TB+ reference rate has a lower monthly equivalent, while B2's USD $6.95/TB/30-day rate is lower. But the egress calculation reverses this quickly. There is no fixed 700GB break-even point. B2 includes free monthly egress up to three times average storage, so the comparison must account for stored volume, other monthly downloads and Wasabi’s current billing policies. Wasabi may have a lower all-in cost for particular workloads, but this depends on storage volume, download volume, B2's three-times-storage allowance, Wasabi's fair-use policy and minimum-duration charges.
NAS integration: Wasabi integrates via S3 API. Synology Hyper Backup, QNAP Hybrid Backup Sync, Rclone, and Duplicati all support Wasabi. Configure the Sydney service endpoint as s3.ap-southeast-2.wasabisys.com. No native package is required.
90-day minimum storage policy: Wasabi charges for a minimum of 90 days of storage even if you delete data earlier. For backup use cases where data is retained long-term anyway, this is not a concern. For short-lived temporary storage or frequent deletion/recreation of backup sets, factor this into the cost calculation.
Australian data sovereignty: Wasabi's Sydney region stores data in Australia. For workloads subject to an Australian data-residency requirement-whether imposed by specific law, government policy, contract or data classification-Wasabi is the only one of these services with an Australian region. Do not assume that all healthcare, legal or government data must be stored domestically.
| Storage price | USD $7.99/TB/month Pay-Go, subject to billing policies |
|---|---|
| Egress (download) | No per-GB charge while monthly egress is no more than active storage; regular excess usage is subject to Wasabi’s service-limitation policy |
| API requests | Free |
| Data centre (AU) | Sydney (ap-southeast-2). AU data residency |
| S3 compatible | Yes. Full S3 API |
| NAS native package | No. Connects as S3 target |
| Minimum storage period | 90 days minimum charge per object |
| Free tier | None (30-day trial available) |
Pros
- Sydney data centre and AU data residency; actual latency depends on location, routing, connection and workload
- No egress fees. Wasabi does not charge a per-GB egress fee, but its free-egress policy expects monthly downloads not to exceed active storage; regularly exceeding that level can lead to service limitation or suspension.
- S3 API compatibility with NAS backup tools that support custom S3 endpoints or provide a validated Wasabi integration
- Flat, predictable pricing. No surprise data transfer bills
Cons
- 90-day minimum storage charge. Less flexible for frequently changing backup sets
- Higher per-TB cost than B2 if you never restore or rarely test
- No separate Wasabi NAS package. Synology Hyper Backup uses a custom S3 endpoint, while QNAP HBS 3 exposes Wasabi as a selectable provider.
- No free tier for testing (trial period available)
Cost Comparison: 5TB at 12 Months
Annual Cost Comparison. 5TB Cloud Backup (AUD approximate, includes 1 full restore)
| Backblaze B2 | Synology C2 | Wasabi | |
|---|---|---|---|
| Storage (5TB x 12mo) | ~$583/yr | ~$545/yr if billed in USD (~$631 if billed in EUR) | ~$671/yr |
| Egress (1x full 5TB restore) | $0 within B2’s stated allowance | $0 | $0 within Wasabi’s free-egress guideline |
| Data centre proximity (AU) | No AU region; US West is the nearest listed B2 region | No AU region; confirm currently available C2 regions | Sydney region available; actual performance varies |
| AU data residency | No | No | Yes (Sydney region) |
| Total (storage + 1 restore) | ~$583/yr | ~$545/yr if billed in USD (~$631 if billed in EUR) | ~$671/yr |
| NAS integration | S3 API only | Native Synology DSM | S3 API only |
| Egress model | Free up to 3x average monthly storage, then per GB | No additional transfer/download fees | No per-GB fee subject to Wasabi’s free-egress policy |
| Best for | Budget, set-and-forget | Synology users, easy setup | AU residency, active restores |
All pricing shown in approximate AUD at 2026 exchange rates. Cloud storage pricing changes. Verify current rates before committing to a service. The Cloud vs NAS Cost Calculator models ongoing storage costs against the cost of on-premises NAS storage for your specific library size and AU electricity rate.
Which Service Should You Choose?
Choose Synology C2 if: You have a Synology NAS, want the simplest possible setup, and value deep DSM integration over cost optimisation. The native Hyper Backup integration, zero egress fees for Synology restores, and reliable support via Synology Account make it the lowest-friction option for most Synology home and prosumer users.
Choose Wasabi if: Australian data residency matters (regulated industries, client contracts), you actively test restores or retrieve data regularly, or you want predictable flat-rate pricing without egress surprises. The Sydney region is the strongest AU advantage here. No provider is categorically the lowest total-cost option for all active users. Compare current storage rates, billing term, B2’s three-times-storage egress allowance, Wasabi’s fair-use and minimum-duration policies, and C2’s current OneStorage pricing.
Choose Backblaze B2 if: You want the lowest month-to-month PAYG storage rate, you rarely need to restore, and data residency in Australia is not a requirement. B2 is a strong choice for set-and-forget backup of large archives where you never expect to need a full restore. A restore increases B2 egress cost only when total monthly downloads exceed three times average monthly storage.
QNAP users: C2 Storage for Hyper Backup is not available, but C2 OneStorage includes the separate C2 Object Storage service; confirm current HBS 3 compatibility before relying on it. Use Wasabi (Sydney region recommended) or Backblaze B2 via QNAP Hybrid Backup Sync S3 integration.
Affiliate note: All three services are covered editorially. Service selection should be based on your use case, not promotional links.
Related reading: our NAS buyer's guide, our Synology brand guide, and our Synology vs QNAP comparison.
Free tools: Backup Storage Calculator and NAS Sizing Wizard. No signup required.
Related reading: our 3-2-1 backup guide and our NAS vs cloud storage comparison.
See also: our complete Synology NAS Australia guide.
See also: our full Backup and Disaster Recovery guide.
Does Synology C2 work with QNAP?
C2 Storage for Hyper Backup and Hybrid Share is designed for Synology NAS. However, C2 OneStorage also includes the separate S3-compatible C2 Object Storage service for third-party integrations; confirm current QNAP HBS 3 compatibility before relying on it. QNAP users should use Wasabi or Backblaze B2 via QNAP Hybrid Backup Sync with S3 protocol.
Is my data stored in Australia with any of these services?
Only Wasabi offers an Australian data centre. Their Sydney (ap-southeast-2) region stores data in Australia. Backblaze B2 has no Australian region. Available account regions are US East, US West, EU Central and Canada East. Synology C2 documentation lists APAC-Taiwan rather than Singapore; confirm which region is currently offered during subscription. Wasabi is the only service in this comparison with an Australian storage region, but whether Australian residency is required-and whether a particular deployment is compliant-depends on the applicable law, data classification, contract and configuration. Obtain specialist advice for regulated data.
What are egress fees and why do they matter?
Egress fees are charges for downloading data out of cloud storage. Backblaze B2 includes free egress up to three times average monthly storage; only egress above that allowance costs USD $0.01/GB. A 1TB restore can therefore have no B2 egress charge when it remains within the allowance. Synology C2 charges no egress for restores to a Synology NAS. Wasabi does not charge a normal per-GB egress fee, subject to its free-egress policy and usage guidelines. For disaster recovery, compare C2's unmetered C2 Storage downloads, B2's three-times-average-storage allowance and Wasabi's fair-use-limited free egress; a large restore does not automatically make B2 more expensive.
How do I connect Synology Hyper Backup to Wasabi?
In Hyper Backup, create a new backup task and select S3 Storage as the destination. Enter the Wasabi endpoint for your region (s3.ap-southeast-2.wasabisys.com for Sydney), your Wasabi access key ID and secret key, and the bucket name you've created in your Wasabi account. No special configuration is required beyond the S3 endpoint URL. Wasabi is fully S3-compatible.
Is Backblaze B2 still a good option in 2026?
B2 remains a viable option for Australian NAS users who have large archives and rarely need to restore. It has the lowest month-to-month PAYG storage rate of the three. The limitations are the absence of an Australian data centre, charges for egress beyond the three-times-average-storage monthly allowance, and no native NAS package. For set-and-forget backup of cold archives where full restores are very infrequent, B2 is cost-effective. For active workflows, compare Wasabi's Sydney location and fair-use-limited free egress with B2's lower storage price and three-times-storage free-egress allowance; neither is categorically stronger for every workload.
What about Synology C2 pricing compared to Wasabi for large libraries?
For new subscribers, C2 OneStorage offers a 300GB annual plan or capacities from 1TB to 200TB with monthly or annual billing; some existing subscribers remain on legacy plans during the 2026 transition. At current reference rates, Wasabi Pay-Go and monthly C2 OneStorage are both priced at 7.99 per TB in their stated currencies, while C2's annual 1TB+ rate has a lower monthly equivalent; taxes and currency conversion may differ. C2's advantage is the native DSM integration and egress-free restores. Which can offset the higher storage cost depending on how often you restore. Use the cost calculator linked above to model your specific library size.
See how cloud backup costs compare against on-premises NAS storage for your library size and AU electricity rate.