The?HP AP837A?is a Controller Module for your HP Disk Array. It offers an essential interface and connection options for your HP array that are needed for optimizing your configuration.?The?HP AP837A?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, which are bundled with our?90 Day Warranty.?Thank you for choosing AltaTech for all your New and Re-marketed IT Gear!