Color: Silver - Material: Steel casing - Model: EKL-21U - Fancy appearance easily installation - Superior video quality-up to 1920 x 1440 pixels @ 60Hz - Bandwidth: 200MHz. - PC port: 2 - Console port: 1 - MAX PC Connections: 2 - PC Port Connector: USB type A Port Female VGA HDDB 15pin - Switching Mode: 1.Button switch 2.Press "Ctrl" key twice - Keyboard Emulation: PS/2MDC Male - Mouse Emulation: USB A Male - Supports different kinds of operating system such as: Win98/ME/2KP4/XP/2003 Linux Apple MAC and so on - Hot Plug-add or remove connected PCs for maintenance without powering down the KVM switch or PCs - No Software Required-easy PC selection via Push Buttons Hot Keys - Cable length: 90cm - English & Chinese user manual included