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12G UHD-SDI BNC Cables
Professional 12G UHD-SDI BNC Cables
Choose the right 75-ohm cable construction for single-link 4K UHD video—from compact Mini RG59 to long-distance RG6.
Mini RG59 • RG59 • RG6 Precision 75Ω BNC Made in USA Individually Tested Lifetime Connector Warranty
Choose Your 12G-SDI Cable
Start with the required run length and routing space. A larger cable generally provides more transmission distance, while a smaller cable reduces weight and makes dense equipment racks easier to manage.
COMPACT & LIGHTWEIGHT Belden 4855R Mini RG59 Approx. diameter: 4.5 mm Typical 12G distance: Up to about 150 ft Best for racks, fly packs, patching and portable systems where low weight and compact routing matter. Shop 4855R Cables → BALANCED RG59 Belden 4505R RG59 Approx. diameter: 5.9 mm Typical 12G distance: Up to about 200 ft A strong all-around choice for studios, cameras, control rooms and medium-distance professional video runs. Shop 4505R Cables → LONG-DISTANCE RG6 Belden 4694R RG6 Construction: 18 AWG RG6 Typical 12G distance: Up to about 250 ft Designed for longer 12G-SDI paths in facilities, venues, production systems and permanent installations. Shop 4694R Cables →
Transmission distances are approximate and depend on equipment, resolution, frame rate, connectors, patch points and the complete signal path.
12G-SDI for Single-Link 4K UHD Video
12G-SDI carries high-bandwidth 4K UHD video over one 75-ohm coaxial cable, helping reduce cable count compared with multi-link workflows. AV-Cables builds professional BNC-to-BNC assemblies for cameras, switchers, routers, monitors, recorders, converters, multiviewers and patching systems.
True 75-Ohm Signal Path Broadcast coax and precision 12G-rated 75-ohm BNC connectors.
Backward Compatible Suitable for compatible SD-SDI, HD-SDI, 3G-SDI and 6G-SDI equipment.
Professional Assembly Hand assembled and individually tested in the USA before shipment.
Compare 12G UHD-SDI Cable Options
| Cable | Construction | Approx. 12G Run | Best Use | Primary Advantage |
|---|---|---|---|---|
| Belden 4855R | Mini RG59, approx. 4.5 mm | Up to about 150 ft | Racks, fly packs and portable systems | Smallest and lightest |
| Belden 4505R | RG59, approx. 5.9 mm | Up to about 200 ft | Studios and medium-distance runs | Balance of size and distance |
| Belden 4694R | RG6, 18 AWG | Up to about 250 ft | Facilities, venues and long runs | Longest 12G reach |
Supported SDI Formats
| SDI Format | Typical Application | Standard |
|---|---|---|
| 12G-SDI | Single-link 4K UHD video | SMPTE ST 2082-1 |
| 6G-SDI | High-bandwidth UHD video | SMPTE ST 2081-1 |
| 3G-SDI | 1080p HD video | SMPTE 424M |
| HD-SDI | Professional HD video | SMPTE 292M |
| SD-SDI | Standard-definition digital video | SMPTE 259M |
How to Choose the Right 12G-SDI Cable
1. Confirm the Video Format Verify that the source and destination use 12G-SDI for the intended resolution and frame rate.
2. Measure the Entire Path Include service loops, patch panels, adapters and every cable segment in the signal path.
3. Select the Cable Size Use 4855R for compact routing, 4505R for general 12G work or 4694R for longer runs.
4. Leave Performance Margin For critical paths, select a cable rated beyond the minimum expected run length.
Need HD-BNC or DIN 1.0/2.3 Connectors?
This category features standard BNC-to-BNC assemblies. For high-density broadcast equipment, compact cameras and specialty video connections, shop our other professional 12G-compatible connector configurations.
Shop HD-BNC Cables Shop DIN 1.0/2.3 CablesWhy Choose AV-Cables?
Professional Components Genuine broadcast coax and precision 12G-rated 75-ohm connectors.
Hand-Assembled in USA Built by experienced cable technicians in Ohio.
Individually Tested Each completed cable assembly is checked before shipment.
Connector Warranty Backed by our lifetime connector replacement warranty.
12G-SDI Cable FAQs
What is the difference between 4855R, 4505R and 4694R?Belden 4855R is the smallest and lightest option, 4505R balances cable size with additional distance, and 4694R is the larger RG6 choice for the longest 12G-SDI runs.
Can a 12G-SDI cable carry 3G-SDI or HD-SDI?Yes. These 75-ohm assemblies are backward compatible with compatible 6G-SDI, 3G-SDI, HD-SDI and SD-SDI equipment.
Can AV-Cables build custom lengths?Yes. Standard and custom lengths are available, along with custom connector configurations and multi-channel cable assemblies.
Need Help Choosing a 12G-SDI Cable?
Tell us the video format, total signal-path length, equipment and routing environment. We can help select the correct cable family or quote a custom assembly.
Contact AV-Cables Call 614-834-4160