Hello Jhon, nice to greet you. Briefly I tell you that I am trying to order the HDMI cable extender, but it has been impossible. When I enter the page and fill out the form with the information requested, in one of the boxes it asks me to enter the serial number (SN) of the Roku Streaming Stick, but when I type it exactly as it is on the device, it gives me a notice reporting that the serial number is wrong, I have already tried to solve it by placing the "O" and the number "0" but it does not work for me with either of the two.