Features: This product supports Wi-Fi and a complete TCP/IP protocol stack, with multiple data encryption methods to ensure data confidentiality. Data transmission via the wireless connection of this serial server enables easy product integration. External antenna, compact and easy to use, powerful performance. Supports desktop, adhesive, wall-mounted, and bundled installation options. Standard RJ45 network interface. Supports Modbus TCP, Smartlink network configuration, and AP/STA mode. Specifications: Material: ABS Size: Approx. 6.1 x 2.6 x 1.8 cm Color: Black Package Includes: 1 x Data Transfer Converter 4PIN Terminal Network Cable Note: 1. Please allow 1-2 cm error due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item.