Premium DS1990/RW1990 Dallas Key Card for Access Control Systems
High-quality stainless steel construction ensures durability and long-term reliability in harsh environments. Precision-engineered with laser-etched ROM for tamper-proof security and flawless compatibility with iButton readers. Ideal for secure access control in corporate offices, data centers, and industrial facilities. Also perfect for time tracking, vending machines, and IoT device authentication. Global wholesale pricing with bulk discounts available. Direct factory supply guarantees the lowest cost without compromising quality. Custom OEM/ODM orders supported for large-volume procurement. Seamless integration with Dallas/Maxim 1-Wire protocols. Compact and portable design with scratch-resistant surface for daily use. RoHS compliant for international safety standards. Stock ready for fast worldwide shipping. Trusted by system integrators and security professionals for mission-critical applications.