Feature:1. DB9 MODEL: This is a pair of DB9 male and female adapter screw terminal block, provide great convenience for your life2. APPLICABLE FOR RS232, RS485: 9 pin 9 hole screw terminal block is suitable for RS232, RS485, works for excellent connection3. GOOD CONVERSION PERFORMANCE: Using selected good quality components, come with high conversion performance, smooth communication4. EXCELLENT PCB: Good quality PCB materials have reliability and miniaturization, good maintenance and interchangeability5. DURABLE USE: DB9 male female connector adapter come with stable structure, excellent performance and long service lifeSpecification:Item Type: DB9 Male Female ConnectorProduct Material: PCBConnector: DB9For RS232 RS485.Package List:1 x Male Conversion Board1 x Female Conversion Board