Why Choose Our USIM Cards?. Compatible with GSM+WCDMA+4G FDD LTE and GSM+WCDMA+4G TDD LTE networks. 3-in-1 Standard SIM Card (2FF), Micro SIM Card (3FF), and Nano SIM Card (4FF) for versatile use. CCID reader/writer support for reading and writing SIM cards and Smart Cards, including various SLE codings.
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