HIGH QUALITY&DURABLE: Pure copper plated joints, fine solder joints, resistance to plug, and good contact to ensure high-quality, durability and a long life. The outer casing is made of environmentally friendly PP engineering material, which is soft and durable. | EASY TO USE: No welding required, 128 type environmental protection copper terminal design, no need for soldering iron and cumbersome tools, easy wiring. The housing is designed with a folding buckle for easy assembly and disassembly without tools. | HIGH COMPATIBILITY: It can connect all kinds of serial devices. Such as computer and tax control machine, digital camera, PLC, PDA, MODEM, set-top box, barcode machine, industrial instrumentation and other equipment for communication. | HOMMIZATION: Each set of products is equipped with a set of cable pressing plate to prevent easy remoHOMMIZATION: Each set of products is equipped with a set of cable pressing plate to prevent easy removal of the connected wires; Shell with non-slip design.val of the connected wires; Shell with non-slip design. | INTUITIVE: All signal ports are clearly named and labeled on both sides of the board for quick wiring.