6G/12G Lightweight SDI Cables

Compact Professional Broadcast Cable

Lightweight 6G and 12G Mini RG59 SDI Cables

AV-Cables lightweight SDI cables provide professional broadcast performance in a thin Mini RG59 construction. Choose Belden 1855A for SD-SDI through 6G-SDI, or Belden 4855R for full 12G-SDI and single-link 4K UHD performance. Both cable families are ideal for equipment racks, fly packs, cameras and portable production systems.

Mini RG59Approximately 4.0 mm diameter
True 75-Ohm BNCProfessional broadcast connectors
Built and Tested in USAEvery assembly individually tested
Lifetime WarrantyConnector replacement coverage

Belden 1855A vs. Belden 4855R

The primary difference is signal bandwidth. Belden 1855A supports professional formats through 6G-SDI, while Belden 4855R supports the full 12 GHz bandwidth required for single-link 12G-SDI.

6G Mini RG59

Belden 1855A 6G HD-SDI Cable

A compact, lightweight 75-ohm cable for professional HD, 3G-SDI and 6G-SDI video systems that do not require single-link 12G-SDI bandwidth.

  • Supports SD-SDI, HD-SDI, 3G-SDI and 6G-SDI
  • 23 AWG solid bare-copper center conductor
  • Approximately 4.0 mm outside diameter
  • Approximate 6G-SDI distance: up to 215 ft
  • Excellent for racks, patching and portable systems
  • Available in multiple lengths and colors
Shop Belden 1855A
12G Mini RG59

Belden 4855R 12G UHD-SDI Cable

A 12 GHz Mini RG59 cable designed for professional single-link 12G-SDI, 4K UHD and backward-compatible 6G, 3G, HD and SD video systems.

  • Supports SD-SDI through 12G-SDI
  • 23 AWG solid silver-plated copper conductor
  • Approximately 4.04 mm outside diameter
  • Approximate 12G-SDI distance: up to 150 ft
  • Ideal for compact 4K production systems
  • Available in multiple lengths and colors
Shop Belden 4855R

Lightweight SDI Cable Comparison

Specification Belden 1855A Belden 4855R
Maximum SDI Format 6G-SDI 12G-SDI
Single-Link 4K UHD No Yes
Cable Construction Mini RG59 Mini RG59
Impedance 75 ohms 75 ohms
Conductor 23 AWG solid bare copper 23 AWG solid silver-plated copper
Approximate Diameter 4.0 mm 4.04 mm
Approximate 6G Distance Up to 215 ft Up to 215 ft
Approximate 12G Distance Not rated for 12G-SDI Up to 150 ft
Best Use Compact HD and 6G systems Compact 12G and 4K UHD systems

Transmission distances are approximate. Actual performance depends on the source, receiver, connectors, patch panels, bulkheads and installation conditions.

Which Mini RG59 Cable Should You Choose?

Choose Belden 1855A When:

Your system uses SD-SDI, HD-SDI, 3G-SDI or 6G-SDI and you want a compact, lightweight professional broadcast cable without paying for unnecessary 12G bandwidth.

Choose Belden 4855R When:

Your equipment uses single-link 12G-SDI or 4K UHD, or you want a lightweight cable that is ready for current and future 12G professional video systems.

Ideal Lightweight SDI Applications

Equipment racks and high-density patch panels
Broadcast and cinema cameras
Production switchers and video routers
Fly packs and portable production systems
Monitors, converters and multiviewers
Mobile trucks, studios and corporate AV systems

Need Help Choosing 1855A or 4855R?

Contact AV-Cables for help selecting the correct signal format, cable length, jacket color or connector configuration for your professional video system.

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