Subscriber identity module

A mini-SIM card next to its electrical contacts in a Nokia 6233

A TracFone Wireless SIM card has no distinctive carrier markings and is only marked as a

Nano SIM (in bottom), Micro SIM and Mini SIM, SIM brackets from Movistar 4G LTE in Colombia

A subscriber identity module or subscriber identification module (SIM) is an integrated circuit chip that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers). It is also possible to store contacts on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are only needed for newer LTE-capable handsets. SIM cards can also be used in satellite phones.

单词	MicroSIM
释义	MicroSIM 英语百科 Subscriber identity module A subscriber identity module or subscriber identification module (SIM) is an integrated circuit chip that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers). It is also possible to store contacts on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are only needed for newer LTE-capable handsets. SIM cards can also be used in satellite phones.
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MicroSIM

Subscriber identity module