Product Review

The RUIPRO USB 5V Powered HDMI Voltage Inserter is designed to provide extra power to support HDMI bus-powered devices such as extenders, HDMI active cables with embedded chip sets, or signal sensing switches. Athough HDMI spec defined the source/display end to provide 50mA current for bus-powered accessories. But actually some souce device or the display device can not provide enough power for the embedded chip sets. The power supplies associated with HDMI source devices such as computers, teleconferencing codecs, media players and set-top boxes/display devices such as Plasma TV, projector are designed, according to HDMI spec, to deliver a 50mA hot plug supply. When an accessory demands more current than the source/display HDMI port can supply, the system may fail to operate dependably. Insufficient power may manifest as a flashing image (HDCP problem), distorted video (EDID related issues), or even a complete loss of the image (hot plug assertion failure) Maintaining the proper voltages in the HDMI System is critical to the hardware "handshake", HDCP key authentication and exchange, EDID information exchange and hot plug connection detect. Our voltage inserter isolates the power from the source/display device and provides a full 5 volts and up to 800 mA of clean, dedicated power to support HDMI switching, splitting and extension accessories. If an installation leverages active cables with embedded chipsets, embedded electronic-to-optical media conversion, signal-sensing auto-switching or similar devices, then this power inserter will be a critical performance element.