Device type: KVM switch - 8 ports - stackable,Type: Rack mountable - 1U,Ports: 8 x KVM port(s),Keyboard/mouse interface: PS/2, USB,Max. Units per stack: 32,Max resolution: 1600 x 1200 @ 60 Hz,Features: Firmware upgradeable,Interfaces: Keyboard / Video / Mouse (KVM) : 8 x RJ-45 ¦ Keyboard : 1 x generic - Mini-DIN (PS/ 2-type), 6-pin ¦ Mouse : 1 x generic - Mini-DIN (PS/2 type), 6-pin ¦ Display / Video : 1 x VGA - HD D-Sub (HD-15), 15- pin ¦ Keyboard : 1 x USB Type A, 4-pin ¦ Mouse : 1 x USB Type A, 4-pin ¦ For cascading : 1 x D-Sub (DB-25), 25-pin ¦ 1 x RJ-11 - Management,Power supply device: Power supply - internal,Required mains voltage: AC 120/230 V (50/60 Hz),Power consumption during operation: 12.5 watts,Width: 43.7 cm,Depth: 16.1 cm,Height: 4.4 cm,Rack mounting kit: Supplied,Product certifications : RoHS,Service & Support: 3 years warranty,Service & Support Details: Limited warranty - 3 years,Min Operating Temperature: 0°C,Max. Operating temperature: 40 °C, Permissible humidity during operation: 0 - 80% (non-condensing), Min. Storage temperature: -20 °C, Max. Storage temperature: 60°C