Newstar KVM over IP module, PS/2, USB. Keyboard port type: USB, PS/2, Mouse port type: USB. 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, XP MS-Dos CPM Linux FreeBSD Unix