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 HP 510359??001 RAID Controller (a LSI SAS3041E-HP Card) is built to manage up to 122 SAS/SATA-connected drives over 4 ports and four?(4) SATA right-angle connectors. It connects to your compatible device via its high-speed PCI Express?x4 connection. This HP 510359??001 RAID Controller has been removed from a working unit, tested for complete functionality by our expert in-house HPE-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 refurbished HPE Server 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!