... , OSDSwitch Scan Time:1-255 second (OSD adjustable)LCD Display:19 TFT LCD Resolution:1600*1200 Brightness:300nits Contrast:1000:1Keyboard ... %RHUsing life:120000 hoursCertificate:CCC, FCC, CEOrdering information:1KVM-1904H 19"TFT/Keyboard/Touchpad/100~240V AC Power/4 Port Switch2KVM ... -1908H 19"TFT/Keyboard/Touchpad/100~240V AC Power/8 Port Switch3KVM ...