SparkFun USB to Serial Breakout - FT232RL - BOB-12731 - SparkFun Electronics
CH341A USB To UART IIC SPI TTL ISP EPP/MEM Parallel Port Converter Module Onboard Operating Indicato – Alexnld.com
SPI to 4 X UART Bridge (MULTIUART) : 6 Steps - Instructables
EVE2-USB2SPI-KIT-A, FT232H
USB to SPI Bridge And Bootstrap Loader (video) - Geeky Gadgets
CY7C65211A-24LTXIT - Infineon - USB TO I2C/SPI/UART BRIDGE, 85DEG C ROHS COMPLIANT: YES
DLN-2 USB-I2C/SPI/GPIO Adapter
Ch347 Development Board Module Usb2.0 High Speed Usb To Uart / I2c / Spi / Jtag / Gpio Open Source Usb-hs-bridge - Integrated Circuits - AliExpress
CH347 Development Board Module USB2.0 High Speed USB to UART / I2C / SPI / JTAG / GPIO Open Source USB-HS-Bridge
USB SPI click - Breakout board for MCP2210 USB to SPI converter
I2C to SPI Click | Mikroe
Yocto-SPI - USB to SPI adapter (TTL 3.3V or 5V), driver-free
Amazon.com: waveshare CP2102 USB-C to UART (TTL) Communication Module, USB-Type C Connector,Compatible with 3.3V Logic Level, Support Linux, Android, Wince, Windows 7/8/10/11,ect : Everything Else
Buy FT232H - USB converter for UART, SPI, I2C Botland - Robotic Shop
USB to 4bit SPI/FT1248 Breakout Module based on FT220XQ USB 4bit SPI/FT1248 IC - Socket Pin Connection - Ftdi | CPC
$5 CH347 board is a USB 2.0 bridge to I2C, SPI, UART, JTAG, and GPIO - CNX Software
Amazon.com: USB to JTAG UART Module, USB to Serial Port Module, High Speed USB to JTAG UART/FIFO SPI/I2C, Multifunction USB to FIFO SPI/I2C Module, with 3Pin Header : Electronics
FT220XQ - FTDI
Usendz@ Uts2210 Usb To Spi Spi Master Hid Device Mcp2210 New Version - Tool Parts - AliExpress