Audio & Video Connectors & Adapters

Match the physical connectors (HDMI, DisplayPort, USB-C, RCA, BNC, optical/TOSLINK, etc.) and the supported signal type (analog vs. digital) and version (e.g., HDMI 2.0 vs 2.1). Check device manuals for required resolutions, refresh rates, and audio formats, then pick an adapter rated to handle those specs

Use a passive adapter when both devices natively support the same electrical signaling and only need a pin-mapping change; choose an active adapter when converting between incompatible signals (e.g., DisplayPort to HDMI in some directions, digital-to-analog conversion) or when signal boosting is required

Longer cables increase likelihood of signal loss—opt for shorter runs when possible, or choose higher-quality, shielded cables and active/repeater-enabled adapters for long distances. For high-bandwidth signals (4K/120Hz, HDR), use cables and adapters rated for the required bandwidth and certification level

Certifications and version numbers indicate supported features and tested performance (e.g., HDMI 2.1 supports higher bandwidth and variable refresh rates). Use products that explicitly list support for the versions and features you need to avoid compatibility issues

Not all adapters pass audio return channel (ARC/eARC) or consumer electronics control (CEC); check the product specifications for explicit mention of ARC/eARC and CEC support if you need those functions

Compatibility issues can arise from firmware, driver, or graphics card limitations; verify your OS and GPU support the target resolution/refresh rate and ensure any required drivers or firmware updates are applied. Read product specs for device-type limitations (e.g., some adapters only support video output, not input)

Keep connectors clean and dry, avoid bending or stressing cables at the connector junction, disconnect by gripping the connector not the cable, and store adapters in a dust-free place; periodically inspect for bent pins or corrosion and replace if damaged