What Is a SIM Card? | Types, Functions & How It Works #1334462 (License: Personal Use)

This vector illustration depicts a standard-sized SIM card with its characteristic yellow-gold contact pad layout, designed to interface with mobile devices for network authentication and subscriber identification. The cut-corner design ensures correct orientation during insertion, while the metallic contacts enable secure data exchange between the card and device.

Used on telecom support pages, mobile device setup guides, or eSIM comparison articles; targets users seeking to understand physical SIM functionality, replace a damaged card, or troubleshoot connectivity issues.