THE TRANSMITTERS WORK, BUT BE ADVISED THAT THEY REQUIRE AN EXTERNAL POWER SUPPLY AND IF YOUR PORTS ARE CLOSE TOGETHER, YOU WON'T BE ABLE TO PLUG IN BOTH, BECAUSE THE WIDE DESIGN IS TOO WIDE TO FIT THE HDMI ADAPTER AND A USB CABLE SIDE BY SIDE. ALSO BE AWARE THAT RETURNING THEM TO CHINA WILL COST YOU MORE THAN THE ADAPTERS COST. THE POINT WAS TO GET RID OF ALL THE WIRES, BUT NOW I NEED EXTENSION WIRES JUST TO PLUG THEM IN.