OPEN BOX - APC Back UPS 650VA 120V 1-USB 54327 You can use the controller

You can use the controller as a display splitter to distribute the same HDMI signal to four displays or you can combine your video source across four displays to create a 2x2 video wall

it is engineered to deliver focused room audio while minimizing sound transfer to neighboring rooms

Which Enables The Use Of Standard Usb Cables To Stack Up To Eight Switches In A Multi-display Installation Where Each Computer Is Fitted With Multiple Video Cards

and menu boards

OPEN BOX - APC Back UPS 650VA 120V 1-USB 54327 You can use the controllerGrade A Used RMA returned items Item is Used and in Very Good Condition Item is Tested , Inspected and Fully Functional Item may have some signs of cosmetic wear, scuff marks and scratches Item is Tested , Inspected and Fully Functional Accessories, original box and packaging, cables and manual may not be included Ship to verified address Only, We do not ship orders to Alaska, Puerto Rico, Hawaii and Military Address APO FPO. No Return 30 Days