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Tray SIM Tray

The "SIM card tray" in a cell phone is a component that houses and holds the SIM (Subscriber Identity Module) card. The SIM card is a chip used to identify and authenticate a user on a mobile network, and is essential for the cell phone to be able to make calls, send text messages, and access data services. The SIM card tray is usually located on the side or top of the cell phone, depending on the design of the device.