Portta SDI HD-SDI to HDMI Mini Adapter Converter support 1080p for Driving HDMI Monitors No need to install drivers, portable, flexible, plug and play. Low power, No power adaptor. Auto detect resolution of HD-SDI, SD-SDI and 3G-SDI Full HDMI supported with embedded 48KHZ digital audio HDMI 1.3 output resolution: 720P@50HZ, 720P@60HZ, 1080i@50HZ, 1080i@60HZ, 1080P@24HZ, 1080P@25HZ, 1080P@30HZ, 1080P@50HZ, 1080P@60HZ No Audio output. The keys are removable, could disassembly the problem key, clean it and reset it to have a try