USBASP AVR Programmer USB ISP with 10Pin To 6 Pin Adapter | Industrious Supply
10-Pin Convert to 6 Pin Adapter Board For ATMEL AVR ISP Programmer USBASP STK500 | eBay
3pcs 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