Everyone is completely missing the point.
The Gekkoscience Compac and 2Pac are strictly SHA256 miners. It isnt possible to mine Litecoin, which is a scrypt currency, with the sticks.
One Scrypt USB miner is the Futurebit Moonlander 2, which has sold out but would be what you would want to look at if you want a Scrypt stick. Keep in mind these are mainly lottery mining units or collectibles and you wont be making hundreds from them.