Number of Pins:40P
Matching Seat:5.5*2.1mm
PO Port has Pull-up Resistance Size:6.5*3.1cm
51 Single Chip Development Board:4.1*8.9cm
Type 1:PO has pull-up resistor
Type 2:PO has pull-up resistor+Cable
Type 3:PO has pull-up resistor+Cable+STC89C51RC+Downloader
Type 4:52 single-chip development board
Type 5:52 single-chip development board+Cable
Type 6:52 single-chip development board+Cable+STC89C51RC+Downloader
Type 7:PO has pull-up resistor kit(12M crystal oscillator)

Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment.

We can accept customized package to meet different requirements:
1.Every item will separately pack into plastic bag,component,module can be packed in anti static bag.
2.Some fragile products such as the display screen can be packed in bubble bag.
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.