Newstar KVM Switch, 8-port, PS/2, USB, IP. Keyboard port type: USB, PS/2, Mouse port type: USB, PS/2. Maximum resolution: 1600 x 1200 pixels. Data link protocols: HTTP 1.1, HTTPS, SMTP, DHCP, X.509, SNMP, Connectivity technology: Wired, Compatible operating systems: Windows NT, 95, 98, 2000, ME, MS-Dos, CPM, Linux, FreeBSD, Unix