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Blue plastic duplex fibre coupler with two SC and two ST female ports

Cables To Go

Cables To Go 27109 SC/ST duplex fibre connector

SKU CH-HHJ2-KP10C MPN 27109

A blue plastic duplex fibre coupler joins two SC connectors to two ST connectors, extending a single-mode cable run while meeting RoHS standards

  • Adapter typeSC Female to ST Female
  • Product colorBlue
  • Product typeFiber Optic Coupler
  • DetailsConnect an SC duplex connector to an ST duplex connector to
  • Connect SC and ST duplex fibres to extend cable runs
  • Blue colour coding identifies single-mode connections at a glance
  • Plastic housing weighs only .30 oz for lightweight patch-panel installs
  • RoHS certified materials meet environmental compliance requirements
  • One-year limited warranty covers manufacturing defects

SC/ST duplex fibre coupler

The Cables To Go 27109 is a passive adapter that joins an SC duplex patch cord to an ST duplex patch cord, allowing installers to extend a single-mode fibre run without splicing. It suits network technicians and integrators who need a quick, tool-free connection between mismatched connector types.

Plastic housing with RoHS compliance

The coupler uses a black plastic body that meets RoHS environmental standards and weighs approximately .30 oz, making it light enough for dense patch panels or wall outlets. As a purely mechanical device it introduces no active electronics, so signal quality depends entirely on the polish and alignment of the fibres being mated.

SC female to ST female gender changer

The single specification that determines fit is the changer type: two SC female ports on one side and two ST female ports on the other. Buyers who need SC-to-SC, ST-to-ST or single-fibre simplex connections will find this coupler does not match their patch-cord ends.

How it compares

Measured against everything we stock in Plugs & Connectors, at today’s prices. Recalculated every night.

Price $16.99
Pricier than about 60% of the 144 comparable items (median $15.99).

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Specifications

Product
Brand nameC2G
Model name27109
Product colorBlue
Product typeFiber Optic Coupler
Adapter typeSC Female to ST Female
Size & build
Shipping weight0.01 kg
Package size38 × 35 × 6 mm

Questions about this item

Should I choose the SC-to-ST duplex coupler or a single-fibre version?

This model 27109 provides two SC female ports and two ST female ports, so it connects a full duplex pair in one adapter.

What does the duplex coupling do once installed in a live link?

It joins an SC duplex patch cord to an ST duplex patch cord, extending the run without splicing or active equipment.

Which fibre standard does the SC/ST interface support and what does it limit?

The coupler is specified for single-mode fibre; it passes the light between SC and ST ferrules but does not convert modes or wavelengths.

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