Linkskey 2-Port Dual Monitor DVI/DVI USB KVM + 7.1 Surround/Microphone/USB with Cables (LDV-DM702AUSK) Full driver support for all types of USB keyboard and mouse Support 7.1 surround sound for true theater audio experience All-time full DDC/EDID emulation for video compatibility and stability True Transparent USB (TTU) Emulation technology with an integrated ASIC User-configurable simultaneous/Independent switching Cables included are USB x2, 3.5mm Audio x2, and DVI-I x4 Cable length about 6 foot