Its the HDD led of the main computer I think..
Uh oh ... time for a Starship Enterprise case mod! The warp nacelles are twinned UPS units with a surge suppressor in engineering along with liquid cooling pipes that run up the dorsal. The primary hull has an SSD hard drive, a CD drive that pops out of the front, USB ports at each phaser battery and enough room for a decent mATX motherboard and graphics card. Video and ethernet plug in under the secondary hull. The on button and indicator are the bridge. Another fan exhausts through the impulse deck.
