How to make an AVR Programmer out of a Pro Mini – Part 1: ISP/ICSP | Pro Mini Micros
DIAMEX AVR ISP: ISP programmer for Atmel AVR, USB port at reichelt elektronik
Amazon.com: Waveshare-AVR Programmer USB AVRISP XPII Compatible with ATMEL at AVR ISP mk2 mkII in-System Programmer Supports AVR Studio 4/5/6/7 Or Higher Version : Electronics