Application: Widely used in RS232/485/422 and DB9 serial communication equipment, such as PLC, access control, touch screen, programmer, data converter, etc. Brand New and High Quality ! Material: plastic Size: about 5.4*3.4cm/2.13*1.34in Color:As Pictures Package Included: 1pc connectors 1. The shell is made of precision molds, with beautiful appearance and high similarity to the general DB9 plug. After installation, it is no different from the finished DB9 line. 2. The double-hole buckle structure design can be easily opened and buckled. After buckling, it is very strong and not loose. Material for Engineering Plastics, the material is very strong, anti-fall compression effect is good. 3. The diameter of the tube tail is 10mm, and the maximum accommodating wire diameter is 10.45mm, which is compatible with the wire diameter of DB9 wire commonly used in the market. 4. PCB circuit board double-layer circuit design, eliminate signal crosstalk, PCB board hard texture, can avoid accidental operation caused by the circuit board scrap phenomenon. 5. No welding, simple operation, plug and play. Basic no requirements for professional knowledge, can guide the general workers large-scale construction, durable, low failure rate. Small appearance, easy to carry. Notice: Please understand that color deviation may vary due to different monitor settings. Due to manual measurement, there will be some errors, which are normal.