Desktop Blu-Ray RW Serial ATA Internal Mounting: Vertical/Horizontal BD, CD, DVD Black Hardware compatibilityThe HP 9.5mm Slim BDXL Blu-Ray Writer is compatible with the HP Z420, Z440, Z620, Z640, Z820 and Z840 Workstations. Not all models available in all regions.Add Blu-Ray functionality to your HP Z Workstation with an HP 9.5mm Slim BDXL Blu-Ray Writer.FeaturesMulti-platform compatibleBack up, copy, and transfer files on a writer that creates Blu-Ray DVD discs that can be played on most set-top players and Blu-ray or DVD-ROM drives. Record, erase, and re-record CD-RW, DVD+RW, DVD-RW, DVD-RAM, BD-R and BD-RE discs up to 500 times.1Plenty of storageStore up to 128 GB of data on a quad-layer disk, 100 GB on a triple-layer disk, and 50 GB on a dual-layer disk, or record up to nine hours of high-definition (HD) video or 23 hours of standard-definition (SD) video on a 50 GB disc.Easy SATA interfaceEnjoy fast data transfer speeds, solid system cooling airflow, high, dedicated bandwidth, an