The Raidmax O lets you computer breathe! With Hexflo technology the O2 provides more then adequate airflow throughout your pc, and with 2 built in matching optical drive covers, never worry about matching your CD/DVD-ROMs again! Last but not least a marvelous choice of non traditional colors including: baby blue, pink, illuminate white, liquid black, lime green, and sunburst yellow make this burst of color is the perfect addition to any home or office.