... metal casing HDMI Switch 3*1 specification . HDMI Switch 8x1, 5x1, 4x1, 3x1, 2x1, different stype. Desk or wall mounting. HDMI v1.4a, HDCPv1.2, 3D support ... . Super backward IR control system, a Optional IR adapter before HDTV help you control the remote DVD/Matrix before ... , receiver, IR adapter is necessory if needed.packing information:inner box: 110L x 75W x 25H mm N.W:222gcartion size ...