2 layers68.3 × 57.7 mm

Sdmux4
hnz1102/sdcdmux-emmc
SD CARD and eMMC Device Multiplexer with Infrared Remote Controller
115 parts16MIT
KiCad boards from 4 GitHub repositories tagged “multiplexer”, the most starred first; open any of them in PCBKit.

hnz1102/sdcdmux-emmc
SD CARD and eMMC Device Multiplexer with Infrared Remote Controller

AK-Homberger/NMEA0183-WiFi-Multiplexer
Reads NMEA0183 messages from two serial lines and forwards multiplexed messages to USB-Serial and WLAN as UDP broadcast.

arn-c0de/ATMEGA-ButtonPanel
ATmega32U4 flight panel with 16-ch multiplexer, rotary encoder, and 19+ inputs.

ellisgl/analog-multiplexer-8x8
8x8 Analog Multiplexer (MUX) using 74xx4051 DIP package.

hnz1102/sdcdmux-emmc
SD CARD and eMMC Device Multiplexer with Infrared Remote Controller

hnz1102/sdcdmux-emmc
SD CARD and eMMC Device Multiplexer with Infrared Remote Controller