Condition: For parts or not working — strictly sold for parts or repair. No returns.

This Spirent SPT-N4U-220 2-slot chassis is non-functional and is being sold as-is for parts or repair purposes only. The unit fails to boot or initialise, the screen does not come on despite the power indicator light being active, and the fans fail to start. The fault appears to be a fundamental boot or power distribution issue within the chassis.

Included in the sale:
• Spirent SPT-N4U-220 2-slot chassis unit

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Spirent SPT-N4U-220 is a 2-slot chassis from Spirent Communications, designed as part of the SPT N4U modular test platform. The N4U series provides a scalable hardware framework for housing interchangeable test modules used in network performance, protocol, and functional testing applications. The chassis provides power, control, and communication backplane functionality for installed modules.

Platform: Spirent SPT N4U Series
Form Factor: 2-slot modular chassis
Slots: 2 (for SPT-compatible test modules)
Primary Use: Network and communications test module hosting
Interface: Backplane interconnect for installed modules
Power: Internal power supply

Please refer to the Spirent Communications website for full specifications and compatible module information.

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.

Clearance

Products listed in this category consist of devices which are either untested or have been identified as faulty and therefore being sold for parts or repairs. You may use these as donor units or even attempt a repair. Due to the sheer volume of stock, some items may be left untested. The description will usually state whether the item is simply untested or if it is faulty.

All products sold under clearance are strictly sold ‘as seen’, returns are not accepted on such items.