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
Razer Onza Tournament Edition Professional Gaming Controller - Newegg.com
Razer Onza Tournament Edition User Manual | 20 pages