NFC Contactless USB RFID Payment Terminal with Graphic Display and 3 Slots SAM The ACR123U is a contactless payment terminal and high performance smart card reader designed for immediate integration on cash registers and POS systems (Point of Sale). Based on 13.56 MHz high-frequency RFID technology and managed by a powerful 32-bit ARM Cortex-M3 processor, it turns the case into a fast, secure and modern payment station. Designed to speed up customer flow at the point of sale, the ACR123U guarantees smooth transactions by guiding the user through a wide backlit LCD graphic display, multicolor LED indicators and a visible and intuitive tapping reading area. With 3 integrated SAM (Secure Access Module) slots and a Tamper Switch anti-intrusion system, it is the ideal solution for electronic payments, e-Purses, loyalty programs, public transport and digital health. Main Features and Performance 1. Interfaced and Intuitive User interface Equipped with an LCD graphic display of 128x64 pixels (up to 16 x 8 lines characters), it allows retailers to clearly show amounts, instruction messages or promotions. The large contactless reading area has three-tone backlight (Red, Green, Blue), flanked by 4 state LEDs (Blu, Yellow, Green, Red) and a loudspeaker for confirming acoustic signals. 2. Triple High Security SAM Slots Unlike standard players, the ACR123U integrates 3 standard SAM (standard SIM format) slots in accordance with ISO 7816 (Class A, B and C to 5V, 3V, 1.8V). This architecture allows the simultaneous housing of multiple security modules for the diversification of cryptographic keys and mutual authentication in financial transactions. 3. High Speed Contactless and Antiques Reach speed on frequency 13.56 MHz up to 848 kbps, ensuring immediate response times. The reading range reaches up to 50 mm with integrated antenna of 75x75 mm. The hardware anti-corrosion function ensures that only one card is processed at a time, even in the presence of several nearby badges. 4. Anti-Manomission Protection (Tamper Switch) It has an internal anti-intrusion protection system (Tamper Switch) and a real-time watch (RTC) integrated to protect payment data and terminal security from physical tampering attempts. ? X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-