Help - found this part - not sure where it goes

MacTracker says Aluminum MacBook 13" can go up to 8 GB. True/works?

May have accidentally bent this cable - What does it control?

Replacing fan in MacBook Unibody - do I need thermal paste/compound?

Any problems with large hard drives and the 13" MBP?

Internal Blu-ray Reader or Burner that will fit in the 13" MBP?