Why upgrade to GT10?
Future-proof
With 10G and SFP+ support, the GT10 is ready for the future.
Better performance
Optimized for higher bit rates.
Designed for cyber security.
Lower operating costs
Optimized cooling and power reduce rack energy consumption.
New components
Replace aging parts, minimise downtime.
How does it work?
Step 1: Identify your device
Enter your GT11 serial number. We validate it and confirm eligibility.
Step 2: Check condition
Select your component status to see your hardware’s value.
Step 3: Upload files
Provide front and top views and diagnostic file for final verification (?). Our sales team verifies condition before issuing your voucher.
Step 4: Get your voucher
Apply your credit to any order over €2000 . Voucher valid until 2026. Generate it now, use it later. Schedule pickup after your GT10 is running (??).
Check the trade-in value
Serial Number
In which condition is your Tangram Chassis?
Is the GT11 Switch functional?
What is your device’s trade-in value?
Base value: €— for a fully functional unit
| Component status | Deduction | Net value |
|---|---|---|
| All components working | €0 | € [to be determined] |
| Defective fan tray | -€ [to be determined] | € [to be determined] |
| Defective PSU | -€ [to be determined] | € [to be determined] |
| Missing PSU panels | -€ [to be determined] | [To be determined] |
| Missing blank panels (each) | -€ [to be determined] | € [to be determined] (1 missing) |
| Chassis: “Acceptable” condition | -€ [Tto be determined] | [to be determined] |
| Non-functional GT11 switch | Not eligible | €0 |
| Chassis: “Bad” condition | Not eligible | €0 |
Example: Defective fan, everything else works = € — credit.
What makes a unit eligible?
 |  |
| Eligible (with deductions) | Not eligible |
| Fan tray not working (-€—) | GT11 switch doesn’t work (?) |
| PSU defective (-€—-) | Chassis has structural damage (bent rails, cracked housing, corrosion) |
| PSU plates missing (deduction applies) | |
| Missing module blind plates (-€—– each) | |
| Chassis: “Good” or “Acceptable” condition | |
We require photos and diagnostic file (?) so our sales team can verify condition before issuing the voucher.
This prevents disputes after shipping. Photos must be clear, in focus to accurately assess its condition.
What we evaluate?
| Component | What we check | Reason |
|---|---|---|
| Chassis | Structural integrity, cosmetic condition (Good/Acceptable/Bad) | Damaged chassis = mounting and grounding problems |
| GT11 switch | Powers on, passes basic connectivity test | Non-functional switch = no residual value |
| PSU | PSU works, magnetic front plates present | Failing PSUs = unplanned downtime |
| Fan tray | Operational status | Failed cooling = throttled performance |
| Blind plates | Quantity at rear | Missing plates = poor airflow, faster component failure |
FAQ
Yes. Either works to identify your device.
Yes. Complete the assessment for each serial number.
Yes. Generate your voucher now, schedule pickup after GT10 is installed. Voucher valid for —- days.
We contact you within __ working days if there’s a discrepancy. You can accept the adjusted value or withdraw. No penalty.
Yes. You can purchase GT10 at standard pricing.
No. Credits apply only to GT10 purchases through the WISI shop (?).
Functional units are refurbished. Non-repairable units are recycled through certified partners. We can provide a disposal certificate.(???)
The program is ongoing but capacity limited. We process a set number of units per quarter.
Ready to calculate your trade-in credit?
No commitment required.
Questions? Contact your sales representative.