DESC: The 43R9150 - ThinkPad Blu-ray Burner Ultrabay Enhanced Drive (Serial ATA) is designed to easily install into the new native serial Ultrabay media bay found in selected ThinkPad systems such as the ThinkPad R400 and R500 Series. View DVD and Blu-ray movies, record music and data to inexpensive CD and high capacity DVD and Blu-ray media, and install CD/DVD software with this optical drive option.