Connect any devices with VGA output to large HD screen or projectors with HDMI input Transfer both video and audio from any device with VGA output to any HDMI TV or projector with this high performance device Provides up to 1080p resolution 3.5mm audio jack, you could connect to speaker with 3.5mm port Micro USB port for optional power, providing external power for devices which have low-power output Length : 0.2m