The VAIO BX Series Notebook features the unique and powerful Multi-Function Bay, enabling simple swapping out of powerful peripherals, such as a DVD RW Double Layer Bay Unit, CD-RW/DVD-ROM Drive Bay Unit, HDD Bay Unit (5400rpm SATA), Weight Saver Bay Unit, and an HDD Adapter Bay Unit. Each of these optional peripherals is compatible with all three size configurations of the BX Series Notebook, making efficient resource allocation across your team a logical and natural part of your technology management.