Refurb Squared
MS8100 TN4, 4 x SFP+, 4-way OTU2 Hybrid Line Board, Combines with SGH8/NXU/SH4 for Transponder/Muxponder Functionality
MS8100 TN4, 4 x SFP+, 4-way OTU2 Hybrid Line Board, Combines with SGH8/NXU/SH4 for Transponder/Muxponder Functionality
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
TN4 is a 4-way OTU2 hybrid line board, supporting access to 4x 10GE services through the backplane (mapped to 32 virtual interfaces based on interfaces and VLANs) and 4 channels of STM-16 services, which aggregates to 4 channels of OTU2 services and uplinks to the OTN network. It has multiple adjustable parameters including ODUK/VC/PKT/FEC overhead.
Enterprise Grade Performance
Enterprise Grade Performance
Our networking cables and optical transceivers are designed for high-performance enterprise networks. They support fast data transmission, stable connectivity, and consistent signal strength across switches, servers, and routers.
Wide Device Compatibility
Wide Device Compatibility
These modules are engineered to work with many leading networking brands such as Cisco, Juniper, Arista, and other enterprise systems. They integrate easily into existing network infrastructure.
Simple Plug And Play Setup
Simple Plug And Play Setup
Installation is quick and easy. Simply insert the cable or transceiver into the compatible port and it begins operating immediately without complicated configuration.
Reliable Connection Stability
Tested And Verified Products
Affordable Enterprise Pricing

Competitive Pricing
Refurb Squared networking hardware delivers high-speed connectivity using tested optical modules and enterprise-grade cables built for reliability and seamless device compatibility.
Built For Reliable Networking
At Refurb Squared we provide high-quality networking hardware trusted by engineers and IT professionals. Our mission is to deliver reliable technology at affordable prices.





