A backplane is a board that adds new connectors (for memory, storage, additional processing, etc.) to an existing configuration. They are often used to save space, or to provide a more reliable connection than a cable. The HP 511812??001 HDD Backplane is built to provide two?(2) LFF SAS/SATA drives ports for your ProLiant DL160 G6 Server. This HP 511812??001 HDD Backplane has been removed from a working unit, tested for complete functionality by our expert in-house HP-Certified Technician, and is ready to ship today! Purchase with confidence, as the photos above represent the exact quality of your items, and come bundled with our 90 Day Warranty. *Please note, we have additional HP 511812??001 HDD Backplanes in stock; feel free to send a message and we will update the quantity to suit your specific needs.* Thank you for choosing AltaTech for all of your lightning-fast IT needs!