The HID iCLASS SE Key II features advanced 256 - bit encryption and is built for high - speed, reliable communications. It meets ISO/IEC 15693/14443B standards for contactless communications, ensuring high data integrity. This key tag is designed with a durable, molded high - impact polymer housing, making it suitable for harsh environments. It supports multiple securely separated application areas, each protected by 64 - bit diversified read/write keys, providing enhanced security for data access. The key tag is available in black and blue colors, and its compact dimensions (1.6" height, 1.2" width, and 0.2" depth) make it convenient for everyday use. With a lifetime limited warranty, this product is a trusted choice for secure identity management.