# NFC via USB: The Ultimate Guide to Seamless Connectivity ## What is NFC via USB? **NFC via USB** represents a powerful integration of Near Field Communication (NFC) technology with the universal connectivity of USB interfaces. This combination allows devices without built-in NFC capabilities—like many desktop computers, laptops, or specialized industrial equipment—to read from and write to NFC tags, communicate with other NFC devices, and emulate NFC cards. In my personal experience working with access control systems, implementing **NFC via USB** readers transformed how we managed employee credentials across our non-mobile device infrastructure. ## How NFC via USB Technology Works ### Technical Foundation and Operation **NFC via USB** devices typically consist of an NFC antenna and chipset connected to a USB controller. When plugged into a USB port, these devices appear as Human Interface Devices (HID) or serial COM ports to the operating system, enabling seamless communication between NFC tags and host computers. My technical skill in embedded systems helped me recognize how elegantly these devices bridge the physical NFC world with digital systems through standardized USB protocols. ### TIANJUN NFC via USB Product Specifications For those considering implementation, TIANJUN offers robust **NFC via USB** solutions. Below are technical specifications for our flagship model, the TJ-NFC-USB-Pro: - **Interface:** USB 2.0/3.0 Type-A connector - **NFC Standards:** ISO/IEC 14443 A & B, ISO/IEC 15693, FeliCa™ - **Supported Tag Types:** NFC Forum Type 1-5 tags, MIFARE Classic 1K/4K, MIFARE Ultralight, MIFARE DESFire, NTAG 2xx series - **Operating Frequency:** 13.56 MHz - **Chipset Code:** NXP PN7150 controller with integrated firmware - **Read/Write Distance:** Up to 50mm (depending on tag type) - **Dimensions:** 98mm × 65mm × 12mm (compact desktop form factor) - **Power Supply:** 5V DC via USB bus-powered - **Data Transfer Rate:** Up to 424 kbit/s - **Compatibility:** Windows 10/11, macOS 10.14+, Linux kernels 4.4+, Android OTG - **Certifications:** CE, FCC, RoHS compliant *Note: These technical parameters are reference data. For precise specifications tailor