GAZZEW U4Tx are an excellent mashup of the U4T and U4, with some extra goodies. The switch features long-pole U4T stem. This keeps the silent upstroke of the U4, while the long pole stem allows the switch to deeply thock uninterrupted by the top out sound. These feature the same amazingly round bump as the U4Ts. These switches uses a new GAZZEW proprietary blend for housings.