20Pcs DB9 2 Row 9 Pin/9 Hole Male/Female Connector Set With Black Hood, White

What is this?The D-sub connector kit is an electrical connector widely used for serial port connections. It is commonly used to link computers with various serial communication equipment, including mechanical and CNC machinery, industrial and automatic control systems, registers, tax control machines, modems, set-top boxes, and other devices requiring data exchange.What will I get?DB9 D-SUB Connector Adapter KitColor: Black Hoods/WhiteConnector Type: Male and FemaleNumber of Positions/Rows: 2 Row 9 Pin/2 Row 9 HoleTotal Size: 31 x 43 x 16mm/1.22 x 1.69 x 0.63inch(L*W*H)Package Includes: 20 Sets x D-sub Connector Sets Are there any advantages of the product?The soldered connector with a gold-plated plug is durable, provides excellent contact, and ensures stable transmission. The rubber core is wear-resistant and high-temperature resistant, and does not easily melt during soldering. The plastic shell provides good insulation and safe operation.The D-sub connector adapter kit is often used for serial port connections, which enable data transmission between devices, such as in computer serial ports and other widely used computer peripheral parallel ports.How to use it?D-SUB serial solder cup connectors provide a robust and stable connection between the cable and the connector, making them resistant to breakage under stress. They are also very simple to use, allowing for a permanent connection between the cable and the connector.What should I notice?It is recommended to connect the device when it is powered off or disconnected. Please confirm that your connector is suitable for this product before purchasing.