HDMI HDBaseT Extender with IR/RS-232 Control and PoC - 100m, 3D, Power over Cable, 4Kx2K
Pro AV/IT HDBaseT™ 4K60 18G HDMI Extender Kit with Audio, RS232, IR, PoC up to 492ft
4K Extender HDMI, HDMI over Fiber Extender - AV System Solution - FS.com
HDMI® Ultra-Slim HDBaseT + RS232 and IR over Cat Extender Box Transmitter - 4K 60Hz | HDBaseT Extenders | HDBaseT | Audio Video
ROBOfiber RB-4KHDMI-T 4K HDMI over fiber transmitter single strand with RS232 channel transport
HDMI-TPX-RX106
us seller NEW HDMI TO DB9 SERIAL VGA RS232 9-PIN ADAPTER CABLE LEAD. Getwiredusa | eBay
Amazon.com: Video Wall Controller, 4K x 2K HD Seamless Splicing Professional Processor with HDMI+DVI+RS232 Input, 4 Way HDMI & SPDIF Output 180 Degree Rotate TV Wall Display 2x2, 1x2, 1x3, 1x4, 2x1,
HDMI Switch 16 Port 4K 60Hz Auto Switch With RS232/LAN-TESmart