This is an internal part for a PS4 controller. If the cross keys, R1, R2, L1, L2, ○, ×, △, or □ buttons are not responding, and the cause of the malfunction is not the silicon, replacing this part may fix the issue. (No refunds will be accepted if the problem is not resolved) This product can only be used for the JDM (DJS)-055 mainboard found in controllers with the ZCT2J~ sticker on the back.