1Highdefinition video source and USB interface realize 2 paths to be switched freely. 2The product support up to 3840x2160 at 30Hz video resolution, compliance with HDMI 1.4 standard. 3Can adapt to a variety of complex application environments. Adaptive EDID/HDCP decryption. 4Support switched by button, which is convenient and quick, easy for you to operate. 5HDMI KVM switcher box support various USB devices such as HUB, Udisk, printer, etc. 6Fit for HDCP 1.4 standard highbandwidth digital content protection technology. 7The product possess high compatibility, can automatch source and display device. 8Builtin automatic adjustment system, make the image smooth, clear and stable. Item Type: HDMI KVM Colour: Black Resolution: 4k / 30hz Interface: HDMI + USB Switching Method: Key switchover, keyboard switchover Material: ABS 1 xHDMIKVM 1 x User Manual 4 xHDMICable