10pcs Avr Isp 6 Pin To 10 Pin Adapter - Parts & Accs - AliExpress
Adafruit 6-pin AVR ISP Breadboard Adapter Mini Kit : ID 1465 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
AVR-ICSP
5pcs 10 Pin To 6 Pin Adapter Board Connector ISP Interface Converter AVR AVRISP USBASP STK500 Standard Geekcreit for Arduino - products that work with official Arduino boards
AVR ISP Pinout
Programming Adapter From 10 Pin to 6 Pin for AVRs : 6 Steps - Instructables