Amazon.com: USB AVR Programmer w/ 6-Pin 10-Pin IDC ISP Connector for USBASP : Electronics
30pcs 10 Pin to 6 Pin Adapter Board Converter Module For AVRISP MKII USBASP STK500 Geekcreit for Arduino - products that work with official Arduino boards
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
10 Pin Convert to Standard 6 Pin Adapter Board+USBASP USBISP AVR Programmer USB | eBay
10 Pin To 6 Pin ISP I Ar B Cr ATMEL STK500 M US $1.26 lasselsberger.com
AVR-ISP 10 Pin To 6 Pin Adapter PCB For USBASP Programmer
Amazon.com: KeeYees 2pcs Downloader Programmer for USBASP for ISP with Cable and 10Pin to 6Pin Adapter Board for 51 for AVR Series Microcontroller : Electronics