Feature:
-Supprot AT89S51/52 single-chip
-Support AVR all ASP chips
-The output port is ATMEL standard port
-With USB power and target board support target voltage 5V, can be selected through the jumper cap connection
. -AUTOSPEED automatic speed control firmware, the downloader will automatically track the chip to be programmed frequency, automatically change the speed to achieve automatic speed control.
-Reserved MOSI, MISO, RET, SCK, VCC, GND. 6PIN interface, user-freindly connection to the target board. 
-Set PROGRAMMING programming interface, the user can upgarde the downloader firmware.

Support chip listing :
51 series: 
AT89S51 AT89S52 AT89S53 AT89S8252