I purchased a ROKU Express 3930R and I'm trying to order the extender. I have tried every possible way of entering the serial # but nothing works. I keep getting a message that the # is incorrect. The first letter is upper-case S followed by (1)2-upper case O's (2)2-lower case o's or (3)2-zeros. The rest are the #'s 839 followed by 6 upper-case letters that are very obvious what they are. Is it just ROKU's page or what? There aren't any other combinations available in the English language.
As it turns out, I don't need the extender, thank God. The connection from the HDMI port to the "stick" is long enough to sit it on the table. SCORE!!! Thanks again for the help, Boogernose. (BTW, that's what I used to call my brother when we were brats. 😂😂