Spirent SPT-N4U-220 2-Slot Chassis Base Model CHS-N4U REV. A3 SPT N4U

Condition: Used

This Spirent SPT-N4U-220 2-slot chassis (CHS-N4U REV. A3) has been fully tested and is confirmed operational. The chassis report confirms the following details extracted directly from the unit:

Model: SPT-N4U
Serial Number: E16380397
Controller Revision: E11 / Controller Version: 3
Backplane Version: 2
Firmware Version: 4.87.4256
Standby Firmware Version: 4.88.0013
Slot Count: 2
Sync Status: Synchronized (Source: Internal)
Secure Mode: FALSE
Status: Up

Active Licences:
• RFC-2544 with VLAN network device benchmark test pack
• Spirent SW update entitlement
• Packet generator and analyser base package
• KP4 Licence: TRUE
• TSN Licence: TRUE
• 5G Licence for MGIG: TRUE
• 2.5G Licence for MGIG: TRUE
• L1 Licence: TRUE

This listing is for the mainframe chassis only. Test modules (1/10/40/100G) are sold separately — please check our shop for available modules.

What is included in the sale:
• Spirent SPT-N4U-220 2-slot chassis mainframe

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 is a compact modular network test chassis from Spirent Communications, designed as part of the TestCenter N-Series platform. It provides a flexible and scalable hardware foundation for performance testing, benchmarking, and protocol conformance validation in lab and field environments.

The SPT-N4U-220 is the 2-slot variant, optimised for smaller footprint deployments while still supporting Spirent's latest high-speed test modules. The chassis supports plug-in modules covering 10GbE, 40GbE, and 100GbE interfaces, enabling engineers to validate network devices, data centre switching fabric, and carrier Ethernet equipment with precision.

With support for RFC-2544, Y.1564, and advanced packet generation and analysis, the platform is widely used for network device benchmarking, QoS validation, and multi-service testing. The N-Series architecture allows the chassis to be centrally managed via Spirent TestCenter software, providing unified control across multiple chassis and module types.

Key Specifications:
Chassis Model: SPT-N4U (CHS-N4U)
Variant: SPT-N4U-220 (2-slot)
Form Factor: Compact modular chassis
Slot Count: 2
Supported Module Speeds: 1GbE, 10GbE, 40GbE, 100GbE
Controller Revision: E11
Controller Version: 3
Backplane Version: 2
Firmware Platform: Spirent TestCenter N-Series
Management: Spirent TestCenter software (GUI and API)
Sync: Internal sync with chain update support
Security: Optional secure mode
Power: Integrated power supply

For full and current specifications, please refer to the Spirent Communications website.

Datasheet