Quote Originally Posted by Jezebel
why not just use software? what happens when you want to stop broadcasting.. or send keys to a specific client?

seems like a really limiting option and costs more than many sub-$10 or free software options.
Some people dislike the obvious reference to Third Party Applications. If Blizz decided that Multi-boxers are bad, then those using detectable key broadcasters and scripting software (read Multibox/Keyclone Autohot Key) would be the first targets. Hardware solutions are for those purposes all but undetectable.

Some I think use hardware for speed. With any of the software solutions you are adding latency to the equation. One keyboard with two wires (effectively what we're talking about) Has the same latency to both PCs (with some increase due to resistance and wire length) but still lower than putting the signal through at least one processing unit or through several network cards and possibly a router/switch (or all three).

Me I just go for use and price, we can't all afford the hardware, but if I could I would.