The?IBM 03N4590?is an?Ethernet Adapter Card. It provides a 10GB cache for optimal performance.?The?IBM 03N4590?has been removed from a working unit, tested for complete functionality by our expert in-house IBM 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.?*Please note, we have additional IBM 03N4590 in stock; feel free to send a message and we will update the quantity to suite your specific needs.*?Thank you for choosing AltaTech for all your lightning fast IT needs!