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Gold BNC female-to-female coupler for 50-ohm coaxial cables

Monoprice Inc.

Monoprice 104128 BNC Female-to-Female Coupler Gold 50-ohm

SKU CH-QHFC-DPKGJ

Couples two 50-ohm BNC coaxial cables such as RG-58, RG-8 or RG-60 with gold-plated connections for corrosion-free performance

  • Adapter typeAudio Video Distribution
  • Product colorGold
  • Connect two 50-ohm BNC cables securely
  • Gold-plated body resists corrosion for lasting signal quality
  • Compatible with RG-58 RG-8 and RG-60 coaxial types
  • Female-to-female design joins identical connectors simply
  • Lifetime warranty from Monoprice backs every coupler

BNC Female Coupler for 50-Ohm Coax

This Monoprice 104128 coupler joins two BNC female connectors on 50-ohm coaxial cables such as RG-58, RG-8 or RG-60. The body and contacts are gold plated to resist corrosion and maintain signal continuity.

Installers Extending Cable Runs

Technicians needing a straight-through join between two terminated 50-ohm cables will find this part suitable. It does not convert between BNC and other connector types, nor does it split or distribute a signal to multiple outputs.

50-Ohm Impedance Match

The coupler is specified for 50-ohm characteristic impedance, so it preserves the transmission line properties of compatible cables like RG-58 or RG-8. Using it with cables of a different impedance will introduce mismatches.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 95% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Brand nameMonoprice
Model name104128
Part number104128
Product colorGold
Adapter typeAudio Video Distribution

Questions about this item

What comes in the box and do I need anything else to join two BNC cables?

The package contains the BNC female-to-female coupler only; you must supply the two 50-ohm coaxial cables such as RG-58, RG-8 or RG-60.

How do I choose the right version when the listing shows model 104128 and part number 4128?

Both numbers refer to the same 50-ohm gold-plated coupler; there are no alternative capacities or versions to select.

What does the 50-ohm rating mean when I connect this in my test setup?

It matches the impedance of 50-ohm cables like RG-58, RG-8 or RG-60 so signals pass without reflection at the joint.

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