Solderless and reusable: Our DB9 breakout connector requires no welding and uses a screwdriver for wiring, making it reusable. Environmentally friendly pure copper terminal blocks provide secure connections without loosening and offer reliable transmission performance. Pure copper goldplated pins: The pins are solid copper pillars with low resistance and are capable of handling currents up to 10A. Antiinterference and durable: Built to standard industrial design, the shell features matte nickel plating. The metal shell shields external electromagnetic interference and supports multiple assembly cycles. Broad compatibility and applications: Suitable for RS232/RS485 serial adapter COM ports. Common uses include connections to computers and tax control machines, digital cameras, PLCs, PDAs, MODEMs, set boxes, barcode scanners, industrial instrumentation, and other communications equipment. Typical use scenarios: Connect a PC to a barcode scanner or other serial device via RS232/RS485 in a warehouse or manufacturing setting. Wire a PLC or other industrial instrument in an automation or control panel. Link a modem or set box to a control system for reliable serial communication.