Sienoc 2-Port 2x1/1x2 Support 3D 1080P HDMI V1.4 Bi-Directional Switch Manual Switcher Supports LPCM 7.1CH Dolby TrueHD DTS-HD Master Audio This is a device of HDMI 2 port bi-direction manual switcher. It can easily switch two routes of HD sources to any one HD display or projector. It can also distribute one HD source to two HD display or projector.