16X DVD+R/DVD-R writing speed provides a solution for high-effect on your PC. This can satisfy all your needs. AOpen DUW1616L PRO supports 8X DVD+R DL and DVD-R DL writing speed. An improved anti-heat design means that no cooling fan is a new technology developed independently by AOpen that can reduce noise form optical device. The tilt calibration will reposition the Optical Pickup Unit (OPU) to maintain a 90-degree angle between the laser beam and the disc surface at all times ensuring an optimal spot shape, even on warped discs.