New Sealed in Box Sells for $319 on Amazon Experience the enhanced workflow and flexibility of a dual screen workspace, anywhere. * Patented 360° swivel hinge and 270° screen rotation. * Folds flat against laptops for effortless portability. * Attaches seamlessly to any laptop with a hidden, device-safe magnetic plate. * Freestanding functionality with built-in kickstand and autorotation. * Full HD display with crisp resolution. * Compatible with Windows, Chrome, and Mac. Three available, two sealed in box, third is brand new without the plastic wrapping.