Digital Amplifier - IDC305 - SPI, USB, and Analog Out | FUTEK
Amazon.com: HiLetgo FT232H USB to JTAG UART FIFO SPI I2C Adapter High Speed Multifunction FT232H Serial Port Module : Electronics
Routing SPI from buffer (QFN) to full speed USB controller, too crowded? : r/PrintedCircuitBoard
Amazon.com: USB Download Module, USB to SPI Master Controller,USB to IC Interface Controller, USB 2.0 Chip USB Micro Controller Development Board for Data Acquisition : Electronics
Amazon.com: Cleiscry USB Bluetooth Pixel Controller 5V WS2812B SK6812 RGB LED Strip BT SPI Music MIC Remote Controler (USB with Remote) : Tools & Home Improvement
I²C/SPI Interface Device - NI
SPI Controller - USB - SparkFun Botland - Robotic Shop
Routing SPI from buffer (QFN) to full speed USB controller, too crowded? : r/PrintedCircuitBoard
Dc Usb Bluetooth Pixel Controller 5v 12v 24v Ws2811 Ws2812b Sk6812 Sm16703 1903 Rgb Led Strip Bt Spi Music Mic Remote Controler - Rgb Controler - AliExpress
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
Adafruit FT232H Breakout - General Purpose USB to GPIO+SPI+I2C
ViperBoard I2C/SPI/GPIO USB Interface Adapter Support
USB-SPI Adapters
USB bus interface chip: CH374 - NanjingQinhengMicroelectronics
FT4222HQ - FTDI
ESP8266 USB MAX3421E Host SPI Shield by DebinixTeam
Controller Ws2812b Remote Control | Ws2811 Led Smart Pixel Controller - Rgb Controler - Aliexpress