Dual Monitor DVI-I KVM switch Designed for use with Dual DVI-I systems 3.5mm speaker and microphone connections Supports digital resolutions up to 1920 x 1200 Supports analog resolutions up to 2048 x 1536 2-Port USB 2.0 hub for storage devices and printers Required cabling sold separately (TK-CD06, TK-CD10, TK-CD15) No CD installation required Microphone jack: 3.5mm