BD Combo Drives PX-B310SA Plextor’s Internal USB PX-B310SA BD Combo Drive gives you an all-in-one solution for playing back Blu-ray Discs, while maintaining the capability of archiving data onto CD or DVD. The PX-B310SA BD Combo Drive reads BDs at 6x, writes to DVDs at 16x, and writes to CDs at 48x. It comes bundled with Cyberlink’s BD Suite for the ultimate in High Definition playback and CD/DVD authoring. With a Plextor drive and Blu-ray, you have a complete entertainment PC. PX-B310U Plextor’s External USB PX-B310U BD Combo Drive gives you an all-in-one solution for playing back Blu-ray Discs, while maintaining the capability of archiving data onto CD or DVD. The PX-B310U BD Combo Drive reads BDs at 6x, writes to DVDs at 16x, and writes to CDs at 48x. It comes bundled with Cyberlink’s BD Suite for the ultimate in High Definition playback and CD/DVD authoring. With a Plextor drive and Blu-ray, you have a complete entertainment PC.