根據
http://www.cdfreaks.com/article/193/2
那些洞是叫heat chimney(熱堙囪),用來排熱的.
內部真的有冷却系統.
Air Flow Cooling System (AFCS)
Anti-Dust Cooling System (ADCS)
With an integrated heat chimney design, ADCS redirects the heat flow out of the drive, while still providing protection from dust.