Product Description

6G HD-SDI BNC Male to Female Extension Cable – Belden 1855A Mini RG59

Extend an existing SDI cable run with a thin, lightweight BNC male-to-female extension cable designed for professional broadcast and AV applications.

Built with Belden 1855A Mini RG59 coaxial cable, this assembly provides professional 75-ohm performance in a smaller, lighter cable than standard RG59. Its compact construction makes it particularly useful around cameras, monitors, equipment racks, patch panels and other installations where space, flexibility and cable weight matter.

The female BNC connector attaches directly to an existing male BNC cable, while the male BNC connector connects to your camera, monitor, switcher, router, converter or other SDI equipment. This eliminates the need for a separate BNC barrel coupler.

Each cable is hand assembled in the USA using professional 75-ohm connectors and individually tested before shipment.

Key Features

• BNC male-to-female configuration for extending existing SDI cables
• Supports SD-SDI, HD-SDI, 3G-SDI and 6G-SDI
• Genuine Belden 1855A Mini RG59 coaxial cable
• 23 AWG solid copper center conductor
• Approximately 4.0 mm cable diameter
• Thin and lightweight compared with standard RG59
• Precision 75-ohm BNC male and female connectors
• Double-shielded construction
• Flexible design for cameras, racks and production equipment
• Multiple lengths and colors available
• Hand assembled in the USA
• Individually tested before shipment
• Lifetime BNC connector replacement warranty

Lightweight Mini RG59 Design

Belden 1855A provides professional SDI performance in a substantially smaller cable than conventional RG59.

The Mini RG59 construction is especially useful where reduced cable diameter, lower weight and increased flexibility are important. It helps reduce cable bulk behind monitors, inside racks and around portable production equipment while maintaining a professional 75-ohm signal path.

This makes 1855A an excellent choice for:

• Camera rigs
• Equipment racks
• Monitor connections
• Patch panels
• Fly packs
• Mobile production systems
• Short equipment extensions
• High-density installations

Extend Your SDI Cable Without a Separate Coupler

The integrated female BNC connector connects directly to the male connector of your existing SDI cable.

Instead of:

BNC Cable → Barrel Adapter → BNC Cable

you get:

Existing BNC Cable → AV-Cables Extension Cable → Equipment

That means fewer separate components and a cleaner extension connection.

Professional 6G-SDI Performance

Belden 1855A is a professional 75-ohm Mini RG59 coaxial cable designed for digital video applications.

Compatible formats include:

6G-SDI • 3G-SDI • HD-SDI • SD-SDI

The extension becomes part of the complete signal path, so maximum transmission distance depends on the combined length of the original cable and extension cable, as well as the SDI format and equipment being used.

Typical Applications

Broadcast cameras • Production switchers • SDI monitors • Video routers • Recorders • Converters • Patch panels • Equipment racks • Fly packs • Mobile production • Studios • Control rooms • Corporate AV • Houses of worship • Live production

Product Specifications

Why Choose Mini RG59?

Choose 1855A when you want:

Thinner Cable — Less cable bulk than standard RG59.

Lower Weight — Excellent for portable production and camera applications.

Greater Flexibility — Easier routing around equipment and inside racks.

6G-SDI Performance — Designed for professional digital video applications.

If maximum cable length and a larger cable diameter are preferable, choose our 1505A RG59 6G HD-SDI Extension Cable instead.

Built & Tested by AV-Cables

Since 1994, AV-Cables has manufactured professional cable assemblies for broadcast, production and commercial AV applications.

Every cable is hand assembled by our technicians and individually tested before shipment for dependable connectivity.