The ASUS CD-S520 breaks through the bottlenecks inherent in traditional CD-ROM technology with innovative solutions to sustain accuracy and stability of high-speed data transfer. The next-generation DDSS II (Double Dynamic Suspension System II) anti-vibration design used in the ASUS CD-S520 offers unparalleled performance to match the demands of high-end systems. DDSS II reduces vibration so that the drive's pick-up head can access data with optimum stability and accuracy. The unit features audio play and skip buttons on the front of the unit.The ASUS CD-S520 is able to offer unparalleled performance to match demand for high-end systems. It not only can reach highest data transfer rate, but also has outstanding performance, stability, and playability.