This Rohde Schwarz MSCU Filter Unit is in excellent condition and was removed from a working environment. This unit came from a large telecommunications manufacturer that had surplus inventory after upgrading equipment. This system is guaranteed to be fully functional with a 30 day money back return policy. We urge customers to view all photos as they show overall condition, included accessories, and useful information. Please feel free to contact us with any questions. Rohde Schwarz MSCU Filter Unit with MSCU-F20 / MSCU-F3 / MSCU-F56 / MSCU-F225 Modules As seen in photos the last module on the right side is unfortunately missing the label. We can open the unit and look for another label upon request.