Description
The SmartAVI RK8-HDX-ULT-S is a high-performance 8-port rackmount HDMI extender transmitter designed to deliver reliable 4K video, control, and power over a single Cat5e/6 cable. Built for enterprise AV environments, this solution consolidates up to eight HDMI extension channels into a single powered rack unit, reducing cable clutter and simplifying infrastructure.
Engineered for long-distance signal distribution, the RK8-HDX-ULT-S supports transmission up to 300 feet via PoE and up to 450 feet when both transmitter and receiver are powered. It ensures consistent ultra-high-definition performance with support for 4K resolution at 30Hz, along with full HDCP compliance and EDID learning for seamless integration.
With integrated RS-232 and bi-directional IR control, this system enables centralized device management and remote operation across distributed environments. Ideal for control rooms, digital signage, education, and enterprise deployments, the RK8-HDX-ULT-S delivers scalable, rack-based HDMI extension with professional-grade reliability and performance.
| Specification | Details |
|---|---|
| Product Type | Rackmount HDMI Extender Transmitter |
| Ports | 8 HDMI Inputs / 8 RJ45 Outputs |
| Video Format | HDMI 1.3, HDCP Compliant |
| Maximum Resolution | Up to 4K x 2K @ 30Hz |
| Supported Resolutions | 480i, 720p, 1080i, 1080p, 1920x1200, 4K |
| Transmission Distance | Up to 300 ft via PoE; up to 450 ft with powered endpoints |
| Cable Type | Cat5e / Cat6 |
| Bandwidth | Up to 10.2 Gbps |
| Color Depth | Deep Color 36/30/24-bit |
| Audio Support | PCM 8-channel, Dolby Digital, DTS-HD Master Audio |
| Control Interfaces | RS-232, Bi-directional IR |
| IR Frequency Range | 38kHz, 56kHz |
| EDID Support | EDID Learning |
| Power | 110–220V |
| Mounting | Rackmount |
| Dimensions | 17” W x 3.6” H x 3” D |
| Weight | 4.3 lbs |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
| Humidity | 10% to 85% (non-condensing) |
| Compliance | UL, CE, RoHS |
| Included Components | Transmitter unit, power supply |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
