Adapter Atmel AVR 10 to 6 pins (ICSP ISP AVRISP USBASP STK500)
Product information:
Adapter for connecting a USBASP programmer to the 6 ICSP pins of an Arduino.
For example, you can use this to quickly install a new bootloader on your Arduino.
You can also upload your program from the Arduino IDE to your Arduino. (Tools->Board->Arduino UNO (or whatever Arduino board you are programming), Tools->Programmer->USBasp, Tools->Burn Bootloader).