Razer RZ06-00470100-R3U1 Onza Tournament Edition Professional Gaming Controller - For Xbox 360, Adjustable Analog Sticks, Hyperesponse Action Buttons, Two Additional Programmable Buttons, Black at TigerDirect.com
GUIDE] Fix the stick problems on your Razer Onza | Overclock.net
Razer Onza (Tournament Edition) - Bjorn3D.com
This is why you shouldn't buy Razer Onza xbox controllers : r/gaming