Tripp Lite 400G Duplex Singlemode 9/125 OS2 Fiber Optic Cable Adapter (CS-UPC/LC-UPC), M/F, Round LSZH Jacket, Yellow, 1 ft.

Overview

The Tripp Lite N381L-001-MF is a fiber optic cable adapter designed to connect standard LC fiber patch cables to network hardware featuring the newer CS interface. It supports 400 Gigabit Ethernet with a duplex singlemode 9/125 OS2 fiber design, enabling high-speed data transmission over distances up to 2 kilometers. This adapter is ideal for dense network environments such as cloud services, hyperscale data centers, and telecom facilities where space and performance are critical.

Key features

• Enables straightforward migration to 400 Gigabit Ethernet by converting LC patch cords to CS ports
• CS connector is approximately 40% smaller than LC plugs, allowing for higher port density in switch racks and patch panels
• Duplex singlemode 9/125 OS2 fiber maintains low insertion loss for reliable high-speed data transfer
• Bend-insensitive fiber design eases installation through tight bends and under-floor pathways
• Low-smoke zero-halogen (LSZH) yellow jacket enhances visibility in dimly lit racks and reduces toxic fumes in case of fire
• Backward compatible with 40 G and 100 G optics, supporting phased network upgrades without replacing existing equipment
• Complies with RoHS and REACH environmental standards for responsible procurement
• Lifetime limited warranty from Tripp Lite ensures long-term reliability and peace of mind

Key specs

• Fiber type: Duplex singlemode 9/125 OS2
• Supported data rates: 400 Gigabit Ethernet, backward compatible with 40 G and 100 G
• Wavelength: 1310 nanometers
• Maximum distance: Up to 2 kilometers
• Connector types: CS-UPC male to LC-UPC female
• Cable jacket: Low-smoke zero-halogen (LSZH), yellow
• Cable length: 1 foot
• Compliance: RoHS and REACH

Connectivity and compatibility

This adapter bridges the gap between legacy LC fiber patch cables and modern CS interface ports, making it a practical choice for network engineers managing transitions to higher-speed infrastructure. Its compact CS connector frees up valuable rack space, which is especially beneficial in high-density switch environments. The adapter supports a wide range of equipment by maintaining compatibility with 40 G and 100 G optics, allowing gradual network modernization without full equipment replacement.

Ideal uses and environments

The Tripp Lite N381L-001-MF fits well in data centers, colocation facilities, and telecom setups where high port density and reliable 400 G connectivity are essential. Its 2-kilometer reach suits spine-leaf architectures, inter-building links, and cross-row connections. The bend-insensitive fiber and LSZH jacket make it suitable for installations requiring tight cable routing and enhanced safety in confined spaces. This adapter is a strong choice for network teams aiming to upgrade bandwidth while preserving existing cabling investments.