Specifications:

1：This adapter has a built-in chip and protocol;

2：It is for PD15V/3A and PD12V/3A power supply charger;

3：Only suitable for Microsoft Surface Pro3/4/5/6/7/GO/Book/Laptop charging; 

Note: we'll ship this item via Epacket or SpeedPAK to US, AU, and CA, usually the delivery time is about 3 weeks; 

For other countries, we'll ship it via registered air mail of Post, usually the delivery time is about 40 days. 

If you want express mail service, please contact us for extra postage in advance.