What is the specific purpose of Unicom's data daughter card? Ask Unicom experts to answer it

Hello, Unicom's "3G data secondary card" provides 3G users with a 1 wireless Internet secondary card (USIM card) bundled with the original main card, and the generated data traffic is recorded in the main card package.

The usage habits of voice, SMS, MMS and data communication of the original master card remain unchanged. At the same time, the data secondary card and the main card can surf the Internet at the same time.

The data secondary card is the business of China Unicom, and will not affect your use of mobile games. Thank you for your support of Unicom's business!