Not cheap but I consider this superior to the RK61. It is still very compact though it has a couple more keys but the huge advantage is that you don't need to share / or ? keys with the Up Arrow Key like on the RK61. Otherwise, it's very similar (down to RGB modes) except this model comes with Gateron Switches whereas my RK61 comes with inhouse RK switches. This also pairs up to 5 different BT devices, unlike 3 on the RK61. Excellent mechanical keyboard!