| HDBaseT Generation | Prefer HDBaseT 2.0 or 3.0 for new installations | Newer generations generally provide improved interoperability, higher feature support, and stronger long-distance 4K performance. | Request the exact HDBaseT generation and a feature-by-feature compatibility statement. |
| Maximum Transmission Distance | Up to 100 m over suitable Category cable; shorter distances may apply at higher formats | The actual range depends on resolution, refresh rate, chroma format, cable quality, connectors, and installation conditions. | Confirm distance at the required video format, not only the maximum distance printed on the specification sheet. |
| Network Cable Requirement | Shielded or unshielded Cat6/Cat6A cable, selected according to the installation environment | Proper cable selection helps reduce signal loss, electromagnetic interference, and link instability. | Check cable category, conductor type, shielding, bend radius, termination quality, and total permanent-link length. |
| Video Resolution and Refresh Rate | At least 4K at 60 Hz for current professional installations | 4K/60 is widely used in meeting rooms, digital signage, education, retail, and control-room applications. | Confirm support for the exact combination of resolution, refresh rate, color depth, and chroma subsampling. |
| Video Bandwidth | Choose a model with sufficient bandwidth for the required HDMI format; 18 Gbps is a common 4K reference point | Bandwidth determines whether high-refresh 4K, HDR, deep color, and advanced chroma formats can pass without reduction. | Compare the extender’s bandwidth with the source and display requirements, including any compression or format conversion. |
| HDR and Color Support | HDR10 support, 10-bit color where required, and documented chroma compatibility | HDR performance affects brightness range, color detail, and image quality in modern displays. | Check supported HDR formats, color depth, RGB/YCbCr modes, and 4:4:4, 4:2:2, or 4:2:0 behavior. |
| HDCP Compatibility | HDCP 2.2 or later for protected 4K content, with backward compatibility where needed | Incorrect HDCP handling can cause blank screens, intermittent images, or failed content authentication. | Verify source, extender, display, and switching equipment support the same HDCP level. |
| Audio Transport | Support for multichannel digital audio and the required return-audio function | Audio needs vary between displays, sound systems, conference equipment, and centralized AV racks. | Check supported formats, audio de-embedding, ARC or eARC requirements, and lip-sync behavior. |
| Bidirectional IR and RS-232 | Bidirectional control for displays, sources, matrix systems, or automation controllers | Remote control over the same cable simplifies operation and can reduce separate control wiring. | Confirm connector type, pinout, baud-rate settings, IR carrier range, and control-direction options. |
| Power over HDBaseT | Consider PoH when the receiver must be powered through the HDBaseT link | Remote power can reduce local adapters and simplify ceiling, wall, and display installations. | Check the supported power class, wattage, polarity, safety protections, and transmitter-receiver compatibility. |
| Latency | Near-zero added latency for interactive, presentation, and control applications | Low latency improves presenter confidence, gaming response, camera monitoring, and interactive training. | Ask for measured latency at the intended resolution and confirm whether scaling or compression is enabled. |
| EDID Management | Selectable or copyable EDID profiles with stable fallback behavior | Good EDID management reduces resolution switching, startup errors, and compatibility problems between mixed devices. | Check EDID learning, manual presets, hot-plug detection, and behavior when the display is powered off. |
| Reliability and Thermal Design | Continuous-duty operation with adequate ventilation and thermal protection | Commercial installations may operate for long periods in enclosed racks, ceilings, or public spaces. | Review operating temperature, humidity range, cooling method, MTBF information, and burn-in test procedures. |
| EMC and Safety Compliance | Documentation suitable for the destination market and installation type | Different regions and project types may require evidence of electromagnetic compatibility and electrical safety compliance. | Request applicable declarations, test reports, labeling details, and power-supply certifications. |
| Warranty and Technical Support | Clear warranty terms, firmware policy, installation guidance, and international support coverage | Remote troubleshooting and replacement procedures are important for overseas projects and distributed installations. | Confirm warranty duration, response time, spare-unit availability, firmware access, and regional service arrangements. |