GameStop branded (got it used ;), Model #BB-070, seems to replicate a 360 controller exactly. (As it was intended.
Gamepad - ID: e6f-201-TSZ360 Pad (Controller)
Button 0: A
Button 1: B
Button 2: X
Button 3: Y
Button 4: Left shoulder button
Button 5: Right shoulder button
Button 6: Back
Button 7: Start
Button 8: Left analog button
Button 9: Right analog button
Axis 0: Left analog stick X axis
Axis 1: Left analog stick Y axis
Axis 2: Shoulder triggers (left up to 100, right down to -100)
Axis 3: Right analog stick X axis
Axis 4: Right analog stick Y axis
Axis 5: D-pad left and right
Axis 6: D-pad up and down