A RAID controller allows your computer to treat an array of drives as a single logical unit, speeding up data storage and providing redundancy in case one drive fails. The Dell HCR2Y RAID Controller (PERC H700) is built to manage two x4 internal mini??SAS-connections for your Dell PowerEdge Server via its high-speed PCI Express 2.0 x8 and generous 1?GB cache. Battery NOT included. This Dell HCR2Y RAID Controller has been removed from a working unit, tested for complete functionality by our expert in-house Dell-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 Dell HCR2Y RAID Controllers 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!