Features: Enhances in system programming efficiency with the TC2030 adapter, featuring spring pin design for compatibility with RJ45, RJ11, and various crystal connectors This adapter ensuring reliable signal transmission and durability, offering convenience. Ideal for networking engineers, developers, and educators requiring precise in system programming, debugging, and device configuration in professional or educational environment. Optimized networking maintenance tasks, office server room, or home, rapid prototyping and stable data transfer across multiple devices. Complex cabling challenge with flat ribbon, engineered for 90%+ connector compatibility and 30% faster programming cycles compared to traditional adapters. Specifications: Component:Plastic Size:Approx.2.4x5cm/0.94x1.97inch Package Includes: 1Pc Adapter Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.