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Power adapter/inverter Inter-Tech NB-90U
The Inter-Tech NB-90U Power adapter/inverter is a 90 W universal notebook adapter from the CobaNitrox Extended series. It uses interchangeable tips with integrated automatic voltage setting so that the correct output voltage is chosen automatically when a tip is attached. The adapter is compact and lightweight, supplying 22 V output and designed for use with a wide range of portable notebooks and devices.
The adapter includes multiple tips for broad compatibility and features a patented tip connection that prevents incorrect voltage selection. Each tip contains the automatic voltage-setting technology and the adapter displays the selected voltage for easy monitoring. The device is lightweight and compact, suitable for mobile use and simple to operate.
Select the tip that matches your notebook's DC input connector and attach it to the adapter. The tip communicates the required voltage to the adapter and the correct output voltage is set automatically. Connect the tip to your notebook and plug the adapter into the mains. The built-in display shows the selected voltage so you can verify the setting before use.
Ensure the chosen tip fits the notebook input securely and verify the displayed voltage matches the device specification. Do not force incompatible tips; consult the compatibility data sheet if unsure. Keep the adapter and tips dry and operate within the temperature range specified by your device manufacturer.
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| Warehouse | Stock | Delivery to the store | Store Price | |
| EU3 | 2 | 22.06.2026 Best delivery | 51.99 € Best price | |
| WH354 | 2 | 01.07.2026 | 83.49 € |
| Warehouse | Stock | Delivery to the store | Store Price | |
| WH109 | 252 | 08.07.2026 | 64.49 € |
|
51.99 €
Stock:
2
Delivery Date:
22.06.2026
Best delivery
Warehouse: EU3
|
|
83.49 €
Stock:
2
Delivery Date:
01.07.2026
Warehouse: WH354
|
|
64.49 €
Stock:
252
Delivery Date:
08.07.2026
Warehouse: WH109
|