... . ·display/mouse/Keyboard with Digital Zone/ CATswitch . ·Excellent video effects, CAT5 KVM Switch the best resolution is up to2048*1536 75HZ ... distance is up to 20M. ·With 21 electronic gain adjustment, CAT5 KVM Switch can avoid signal attenuation caused by distance problems ... ,such as Siwei,EVOC,Lenovo,IBM,DELL,HP,SUN,etc. ·CAT5 KVM Switch support various operating system: Microsoft, Linux, Unix, etc ...