StarTech.com SV431DUSBU 4 Port 1U Rack Mount USB KVM Switch with OSD Type: D-Sub, USB Computer Connections: 4 Ports Video Resolution: 1920 x 1440@60Hz (1920 x 1200@60Hz - Wide Screen) PC Selection: Push Buttons/Hot Keys/OSD PC Connectors: 4 x High Density DB15 (VGA) Female Console Connectors: 1 x High Density DB15 (VGA) Female 2 x USB A Female LED Indicators: 1 x Green - Power 4 x Green - Online PC 4 x Red - Selected PC Temperature: 5 & degC to 40°C (41°F to 104°F)