Features: This DVI switch has 3 DVI ports, 2 inputs and 1 output, allowing 2 DVI devices to be displayed on a single DVI display device. The switcher supports different resolutions, including 4K x 2K @ 30hz, 3D, 1080P @ 60hz, 1080P @ 30hz. You can share the most luxurious videos with friends or family. Imported high-performance combination chips are used to support hot swapping. The durable cold metal shell protects the inside and keeps the device cool by fast heat absorption and heat dissipation, ensuring stable and smooth work for a long time. Compact size, simple plug and play installation. Suitable for most devices with standard DVI interface. Package Includes: 1 Piece Switcher Specifications: Name: 2 In 1 Out Switch Splitter Size:Approx 2.28X2.64X0.94in Resolution:1920X1080P 4K Weight:350g Color:Black note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.