USB AVR Programmer w/ 6-Pin 10-Pin IDC ISP Connector For USBASP | eBay
Amazon.com: Geekstory for ATMEL 51 AVR USB ISP ASP Microcontroller Programmer Downloader with Cable + 10Pin to 6Pin Adapter Board for Ender 3 or Ender 3 Pro : Electronics
USB AVR Programmer
Pololu USB AVR Programmer v2.1
BAMILL USB 10Pin to 6Pin AdapterSTK500 USBASP AVR Programmer Adapter Board For Arduino - Walmart.com