Fiber optic patch cable StarTech 3m LC/UPC to LC/UPC OM4 50/125µm duplex LSZH

StarTech 3m LC/UPC to LC/UPC OM4 50/125µm duplex LSZH fiber optic patch cable provides a multimode connection for short‑reach high‑speed networks. The cable uses OM4 multimode fiber with a 50/125 µm core/cladding profile and LC/UPC connectors on both ends in a duplex zipcord configuration. It is designed to support 40G and 100G multimode transceiver applications and is compatible with VCSEL and LED light sources. The LSZH (Low‑Smoke, Zero‑Halogen) outer jacket reduces smoke and halogen emissions in the event of fire and makes the cable suitable for installations with strict safety or building code requirements.

Advantages

This OM4 duplex fiber cable delivers low insertion loss and is individually tested to meet optical insertion loss limits, ensuring consistent performance in data center and enterprise environments. The LC/UPC connectors provide a compact duplex interface commonly used with SFP+, QSFP+ and other multimode transceivers. The zipcord form factor simplifies cable routing and pairing of transmit/receive fibers while the LSZH jacket limits toxic and corrosive byproducts under high heat. The cable’s OM4 specification increases bandwidth and supports higher data rates compared with lower‑grade multimode fibers, while maintaining backward compatibility with existing 50/125 µm equipment.

Suitable for

• Data center interconnects between switches, patch panels and transceivers
• Server rack and SAN connections using SFP+, QSFP+ or similar multimode transceivers
• 40GBase‑SR4 and 100GBase‑SR10 short‑reach multimode links
• Environments requiring low‑smoke, zero‑halogen cabling such as central offices and public buildings

Key specifications

• Fiber type: OM4 multimode, 50/125 µm core/cladding
• Connector ends: LC/UPC to LC/UPC duplex
• Length: 3 m (approximately 9 ft)
• Jacket: LSZH (Low‑Smoke, Zero‑Halogen)
• Form factor: Duplex zipcord
• Compatible light sources: VCSEL and LED
• Designed for data rates up to 40G and 100G multimode applications

How to use

Ensure transceivers and ports are compatible with LC/UPC multimode connections before installation. Route the duplex zipcord to avoid tight bends; maintain the manufacturer’s minimum bend radius for multimode fiber to prevent increased attenuation. Align and insert each LC/UPC connector into the corresponding duplex port or adapter until the latch clicks. If required, verify link integrity and optical loss using appropriate test equipment and replace dust caps only when connectors are not in use to protect endfaces.

Usage recommendations

Store and handle the fiber cable by the jacket, avoid twisting or kinking the zipcord, and keep connector endfaces clean using proper fiber cleaning tools and procedures. Use LSZH cabling in corridors, equipment rooms and public spaces where low smoke and halogen emissions are required by code. For critical links, perform insertion loss and continuity tests after installation to confirm compliance with system requirements.