The SCUF Seal of Approval is found in different locations based on the controller type and is a unique number. The location of the Seal of Approval and the start of the unique number for each controller type is as follows:
SCUF Vantage = Found on the back of your controller, starts with: A or B
SCUF Infinity1 = Found under the paddle hatch on the back of your controller, starts with: INX
SCUF Elite = Found under the paddle hatch on the back of your controller, starts with: ELT
SCUF Impact = Found on the back of your controller, starts with: IMP
SCUF Infinity 4PS Pro = Found on the back of your controller, starts with: INF
SCUF Prestige = Found under the faceplate on the left-side of your controller, starts with: XP
SCUF Instinct Series = Found inside the battery compartment on the back of your controller
SCUF Reflex Series = Found under the front trim, on the right side of your controller
The SCUF Seal of Approval proves that your controller is tournament-legal and contains no modifications which would otherwise disqualify it for use in competition. It also validates your warranty and shows the controller has not been opened or tampered with.