4 in 1 out HDMI® KVM switch 41HK2.0 length 209mm; width 64mm; height 27mm; supports HDMI® 2.0, supports Windows, Mac, Linux systems; supports up to 4K*2K@60Hz resolution
2 in 1 out HDMI® KVM switch 21HK2.0 length 209mm; width 64mm; height 27mm; supports HDMI® 2.0, supports Windows, Mac, Linux systems; supports up to 4K*2K@60Hz resolution
RS232 to RS485/RS422 bidirectional communication protocol converter H104 length: 97mm; width: 65mm; height: 24mm; support plug and play, surge protection
HDMI® switcher 2 in 2 out 212h, length: 135mm; width: 55mm; height: 22mm; supporting 1 channel of independent SPDIF optical fiber audio output; maximum support 4k 60Hz Resolution; details are attached with schematic diagram of connection