Product Description
Belden 4855R 12G UHD 4K HD-SDI BNC Cable – Mini RG59 Broadcast Coax
Professional 12G UHD Broadcast Performance
AV-Cables Belden 4855R 12G UHD HD-SDI BNC cables are engineered for professional broadcast, production, live event, and AV installations where uncompromising signal integrity is essential. Built using genuine Belden 4855R Mini RG59 75-ohm coaxial cable and precision 12G-rated BNC connectors, these cable assemblies provide reliable transmission of uncompressed 4K UHD video while maintaining exceptional return loss and low attenuation.
The compact 4.5 mm Mini RG59 cable offers excellent flexibility without sacrificing performance, making it an ideal choice for cameras, routers, switchers, monitors, patch panels, fly packs, mobile production trucks, and other high-density broadcast systems where space is limited.
Every cable is hand-assembled by experienced technicians in the USA and individually tested before shipment to ensure dependable performance in mission-critical environments.
Designed for Modern Broadcast Workflows
Belden 4855R is one of the industry's preferred miniature 75-ohm broadcast coaxial cables for UHD-SDI applications. Its compact size allows tighter cable routing while maintaining the performance required for today's demanding 12G video formats.
Compatible with:
- 12G-SDI
- 6G-SDI
- 3G-SDI
- HD-SDI
- SD-SDI
Supports:
- 4K UHD (2160p)
- HDR Workflows
- Ultra High Definition Production
- SMPTE Broadcast Standards
Features
- Genuine Belden 4855R Mini RG59 broadcast coax
- Precision true 75-ohm 12G BNC connectors
- Supports SDI formats from SD through 12G
- Optimized for 4K UHD 60p video transport
- Compact 4.5 mm outside diameter
- Flexible Mini RG59 construction
- Low-loss broadcast performance
- Excellent return loss characteristics
- Hand-built in the USA
- Individually tested before shipment
- Available in multiple colors
- Lengths from 1.5 ft to 150 ft
- Lifetime Connector Replacement Warranty
Ideal Applications
Perfect for professional:
- Broadcast Television
- Live Production
- Sports Broadcasting
- Video Production
- OB Trucks
- Fly Packs
- Studio Installations
- Broadcast Cameras
- Switchers
- Video Routers
- Patch Panels
- Engineering Racks
- Corporate AV
- Houses of Worship
- Government Facilities
- Educational Institutions
Compatible Equipment
Compatible with equipment from manufacturers including:
- Blackmagic Design
- Sony
- Ross Video
- Grass Valley
- Panasonic
- Canon
- AJA Video Systems
- FOR-A
- Evertz
- Imagine Communications
- TVLogic
- Marshall Electronics
- Leader
- Tektronix
- Decimator Design
Technical Specifications
| Specification | Details |
|---|---|
| Cable | Genuine Belden 4855R |
| Cable Type | Mini RG59 Broadcast Coax |
| Impedance | 75 Ohm |
| Conductor | Solid Bare Copper |
| Outside Diameter | 4.5 mm (0.177") |
| Connector Type | Professional 12G UHD BNC Male |
| Signal Support | SD, HD, 3G, 6G & 12G-SDI |
| Maximum Resolution | Up to 4K UHD |
| Standards | SMPTE ST 2082-1, ST 2081-1, 424M, 292M & 259M |
| Construction | Hand Built in USA |
| Testing | Individually Tested |
| Warranty | Lifetime Connector Replacement |
Why Choose Belden 4855R?
Belden 4855R combines broadcast-grade electrical performance with the flexibility of a miniature RG59 cable. Its smaller diameter makes installation easier in crowded racks, portable production systems, camera rigs, and fly packs while maintaining the signal integrity required for modern UHD video systems.
Compared to traditional full-size RG59 cable, Belden 4855R offers:
- Smaller cable diameter
- Greater flexibility
- Easier routing
- Reduced cable weight
- Excellent 12G UHD performance
- Professional broadcast reliability
Hand Built in the USA
Every AV-Cables cable assembly is manufactured by experienced technicians using premium broadcast components and professional assembly techniques. Each cable is individually tested before shipment to verify electrical performance and connector integrity, ensuring dependable operation in demanding broadcast environments.
Our commitment to quality means every cable is backed by our Lifetime Connector Replacement Warranty, giving you confidence that your investment is built to last.
Available Options
- Lengths from 1.5 ft to 150 ft
- Multiple jacket colors available
- Custom lengths available
- Bulk orders welcome
- Custom labeling available upon request
Why Buy From AV-Cables?
- ✔ Genuine Belden Broadcast Cable
- ✔ Hand Built in the USA
- ✔ Individually Tested
- ✔ Premium Broadcast Components
- ✔ Lifetime Connector Replacement Warranty
- ✔ Fast Shipping
- ✔ Expert Technical Support
- ✔ Trusted by Broadcast Professionals Since 1994
