This picture depicts a person unplugging a cord located inside of a Playstation 3. They have pulled the system apart in order to fix the flashing red light issue that the PS3 is known for. The plug appears to be one for the hard drive. Removing the drive is one of the many steps in order to change the thermal compound on the CPU to get rid of the flashing red light issue that is caused by over heating.
Check out the tutorial:
PS3 Blinking Red Light fix