Tripp Lite 400G Duplex Singlemode 9/125 OS2 Fiber Optic Cable (CS-UPC/LC-UPC), Round LSZH Jacket, Yellow, 3 m

The Tripp Lite N381L-03M is a 3 m duplex singlemode 9/125 OS2 fiber optic cable that carries 400 Gb Ethernet traffic over distances up to 2 km. It gives cloud operators, data center managers, and telecom engineers the throughput and reach demanded by modern networks.

One end terminates in a CS-UPC connector and the other in an LC-UPC plug. The CS interface is about 40 percent smaller than a standard LC, allowing twice the port density in high-capacity switches and patch panels that use QSFP-DD transceivers. The LC side links seamlessly to existing singlemode gear, so you can introduce 400 Gb links without overhauling your entire fiber plant.

The cable uses 9/125 micron glass and meets the G657A2 bend-insensitive specification. This construction stands up to tight routing inside racks and cable managers without excessive attenuation, which simplifies installation in crowded spaces.

Its jacket is molded from low smoke zero halogen material and appears in bright yellow, giving clear singlemode identification and releasing minimal toxic fumes if exposed to fire. Safety, visibility, and standards compliance come together in one package.

The assembly is backward compatible with 40 Gb and 100 Gb equipment, so teams can deploy it today for top-of-rack or spine-to-leaf connections and migrate to faster electronics whenever the budget or workload requires. From hyperscale cloud clusters to enterprise server rooms, it offers a dependable and space-saving path toward higher bandwidth.

• Supports 400 Gb Ethernet links on OS2 singlemode 9/125 fiber for distances up to 2 km
• CS-UPC male to LC-UPC male terminations; CS footprint is about 40 percent smaller than LC to maximize rack space
• Compatible with QSFP-DD transceivers and works with 40 Gb and 100 Gb equipment for smooth migration
• Bend-insensitive G657A2 fiber tolerates tight routing without significant signal loss
• Jacket made of low smoke zero halogen material in bright yellow for quick identification and reduced fumes in a fire
• 3 m length is ideal for patch panel to switch or rack to rack connections inside data centers and telecom rooms