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This 90 degree right angle DB9 adapter is designed for 9PIN RS232 male to female extension conversion. The right angle structure perfectly solves the problem of insufficient installation space and awkward cable routing, effectively reducing bending pressure on wires. It comes with mounting screws for fixed panel installation, ensuring firm connection without poor contact. Adopting standard pin definition, it maintains stable serial signal transmission, widely suitable for industrial control equipment, PLC, POS machines, desktop chassis serial port expansion and narrow space RS232 interface conversion scenarios.