Amazon.com: WSDMAVIS 1Pcs CH341A USB to I2C IIC SPI ISP UART TTL Serial Adapter EPP/MEM Parallel Converter Module : Electronics
Amazon.com: All in 1 CH341A USB to SPI I2C IIC UART TTL ISP Serial Adapter Module EPP MEM Converter for Serial Brush Debugging RS232 RS485 : Electronics
781964-02 - Ni - Interface Device, I2C/SPI, USB-8452
USB-I2C/SPI/GPIO/PWM/ADC Interface | $19.10 to $89.40
I2C to SPI Click | Mikroe
Codemercs Webshop - USB zu I2C und SPI Dongle
DLN-4S Multiprotocol Master & Slave Adapter
I2C vs SPI vs UART – Introduction and Comparison of their Similarities and Differences - Total Phase
Devantec USB to I2C, SPI and Serial interface (Short Pin Headers) - RobotShop
USB-ISS
Amazon.com: All in 1 USB for ISP Serial Adapter Converters SPI/I2C/IIC/UART/TTL : Electronics
Devantect USB to I2C, SPI and Serial interface - RobotShop
USB-I2C/SPI/GPIO Interface Adapter.
781964-03 - Ni - Interface Device, I2C/SPI, USB-8452
UART I2C/SPI Click | Mikroe
Total Phase Aardvark I2c / SPI Host Adapter USB to I2c/spi Bridge for sale online | eBay
ViperBoard I2C/SPI/GPIO USB Interface Adapter Support
Adafruit FT232H Breakout - General Purpose USB to GPIO+SPI+I2C
Adafruit FT232H Breakout - General Purpose USB to GPIO, SPI, I2C [USB C & Stemma QT] : ID 2264 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Total Phase Aardvark | USB to I2C and SPI Host Adapter