TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout - Without Touch : ID 2218 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits
4K lcd controller drive board support edp with HDMI Compatible DP v by one connector for 3840x2160 40 pin LCD screen B173ZAN01.0|Replacement Parts & Accessories| - AliExpress
Amazon.com: IDE 40-Pin Male to Female Hard Drive Extension Cable 6 inch Flat Ribbon Cord for 3.5" PATA HDD (39 Pin + 1x Empty) : Electronics
Mini HDMI to HDMI Adapter OTG Cable 20 pin GPIO Header for Raspberry Pi Zero for Raspberry Pi Zero Accessories kit 3 in 1 Black - Walmart.com
40-Pin Male 3.5" to 50-Pin Male 1.8" IDE Hard Drive Adapter
I recently salvaged a 15' 40-pin touch display from a dead laptop. Could someone help me find a board to convert that 40-pin to HDMI? - Quora
Overview | Adafruit TFP401 HDMI/DVI Decoder to 40-pin TTL Display | Adafruit Learning System