AVR MICROCONTROLLER PROTOTYPE BOARD WITH STKxxx COMPATIBLE 10 PIN ICSP FEATURES:

ICSP 5x2 pin connector for in-circuit programming with AVR-PG1 or AVR-PG2
Voltage regulator +5V, 7805 and filtering capacitors
Quartz crystall oscilator circuit 8Mhz
reset IC ZM33064
status LED connected to PB0 via removable jumper
Power plug-in jack
DIL40 microcontroller socket
RS232 DB9 female connector
RS232 MAX232 interface circuit with Tx, Rx, CTS, DTR/RTS signals
Extension slot on every uC pin
Grid 100 mils
GND bus
Vcc bus
FR-4, 1.5 mm (0.062"), green soldermask, white silkscreen component print
four mounting holes 3.3 mm (0.13")
dimensions 100x80 mm (3.9x3.15")