The PX-B120U by Plextor plays all your discs smoothly when connected to any compatible laptop or PC.   Featuring a 4-speed mechanism and supplied with a comprehensive software suite, the PX B120U delivers the ultimate HD viewing experience, whether youre watching a Blu-ray or DVD movie. This device even works with CDs and other optical disc drives. Powered via USB, the Plextor PX-B120U is a must-have accessory for your computer.