[DVI Switch 2 in 1 out]2 ports DVI Switcher, Support 2x DVI inputs, and 1x DVI output, The DVI monitor can display any of the two DVI sources , Both the inputs and output compatible with HDMI. Don't compatible with Dual-Link DVI signals. [Fast switching design] Both input and output have EDID storage space. Compared with other DVI devices, our model can realize the switching function within 2 seconds under normal circumstances, and realize faster video switching. (Note: Due to the different response time of the display, the switching time will be different.) [High resolution]support DVI signals resolution up to 4096x2160@30Hz.Doesn't work for 2560 x 1600 resolution [Plug and Play] Support plug and play. Support last time working state memory function when power off.