![Amazon.com: 50 feet Serial Extension Cable, DB9 Male to Female, 28 AWG, RS232 9 Conductor, 1:1, Black, Male to Female Serial Extender for Printer, Modems, Networks, DB9 RS232 Male to Female Cable, CableWholesale : Electronics Amazon.com: 50 feet Serial Extension Cable, DB9 Male to Female, 28 AWG, RS232 9 Conductor, 1:1, Black, Male to Female Serial Extender for Printer, Modems, Networks, DB9 RS232 Male to Female Cable, CableWholesale : Electronics](https://m.media-amazon.com/images/I/41SzaeDLcAL._AC_.jpg)
Amazon.com: 50 feet Serial Extension Cable, DB9 Male to Female, 28 AWG, RS232 9 Conductor, 1:1, Black, Male to Female Serial Extender for Printer, Modems, Networks, DB9 RS232 Male to Female Cable, CableWholesale : Electronics
![Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics](https://m.media-amazon.com/images/I/31La0OHYV0L._AC_.jpg)
Amazon.com: UGREEN USB to RS232 Adapter Serial Cable DB9 Male 9 Pin with PL2303 Chipset RS-232 Converter Cable for Windows 10 8.1 8 7 XP Vista, Mac OS, Linux, 3FT : Electronics
![Amazon.com: Your Cable Store 1 Foot DB9 9 Pin Serial Port Y Cable 1 Male / 2 Female RS232 5 Pack : Electronics Amazon.com: Your Cable Store 1 Foot DB9 9 Pin Serial Port Y Cable 1 Male / 2 Female RS232 5 Pack : Electronics](https://m.media-amazon.com/images/I/41S3DQo-OiL._AC_.jpg)
Amazon.com: Your Cable Store 1 Foot DB9 9 Pin Serial Port Y Cable 1 Male / 2 Female RS232 5 Pack : Electronics
![Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics](https://m.media-amazon.com/images/I/419KAw5rJCL._AC_SY350_.jpg)
Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics
![Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics](https://m.media-amazon.com/images/I/610vSfXtrkL.jpg)
Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics
![Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics](https://m.media-amazon.com/images/I/61rE7FI2jtL.jpg)
Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics
![Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 - USB Serial Adapter - Prolific USB to Serial Adapter - 1-Port : Electronics Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 - USB Serial Adapter - Prolific USB to Serial Adapter - 1-Port : Electronics](https://m.media-amazon.com/images/I/41tJCTJiPiL._AC_.jpg)
Amazon.com: StarTech.com USB to Serial RS232 Adapter - DB9 - USB Serial Adapter - Prolific USB to Serial Adapter - 1-Port : Electronics
![Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics](https://m.media-amazon.com/images/I/31o2hhkwUVL._AC_.jpg)
Amazon.com: DTECH DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX line for Data Communication (15 Feet, Black) : Electronics
![Your Cable Store Serial 9 Pin Female/Female Coupler Adapter DB9 RS232 : Everything Else - Amazon.com Your Cable Store Serial 9 Pin Female/Female Coupler Adapter DB9 RS232 : Everything Else - Amazon.com](https://images-na.ssl-images-amazon.com/images/I/41U+Q3LDfjL._AC_UL600_SR600,600_.jpg)
Your Cable Store Serial 9 Pin Female/Female Coupler Adapter DB9 RS232 : Everything Else - Amazon.com
![Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics](https://m.media-amazon.com/images/I/517lJikb+RL._AC_SY1000_.jpg)
Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics
![Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics](https://m.media-amazon.com/images/S/aplus-media-library-service-media/ea8d5c89-c6b3-47cd-84a9-75e8b3ae8de3.__CR0,0,970,600_PT0_SX970_V1___.jpg)
Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics
![Amazon.com: StarTech.com DB9 RS232 Serial Null Modem Adapter - F/F - Null modem adapter - DB-9 (F) to DB-9 (F) - NM9FF : Electronics Amazon.com: StarTech.com DB9 RS232 Serial Null Modem Adapter - F/F - Null modem adapter - DB-9 (F) to DB-9 (F) - NM9FF : Electronics](https://m.media-amazon.com/images/I/71DnsVALWqL.jpg)
Amazon.com: StarTech.com DB9 RS232 Serial Null Modem Adapter - F/F - Null modem adapter - DB-9 (F) to DB-9 (F) - NM9FF : Electronics
![Amazon.com: Cenrykay 9pin RS232 Terminal Adapter Breakout Board DB9 Female and Male Soldering Connector 10-Pack with 10PCS Gray Plastic Case Assortment Kit : Electronics Amazon.com: Cenrykay 9pin RS232 Terminal Adapter Breakout Board DB9 Female and Male Soldering Connector 10-Pack with 10PCS Gray Plastic Case Assortment Kit : Electronics](https://m.media-amazon.com/images/I/51Z0i7sgx-L._AC_SY580_.jpg)
Amazon.com: Cenrykay 9pin RS232 Terminal Adapter Breakout Board DB9 Female and Male Soldering Connector 10-Pack with 10PCS Gray Plastic Case Assortment Kit : Electronics
![Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics](https://images-na.ssl-images-amazon.com/images/I/61Fo7BOCljL._AC_UL600_SR600,600_.jpg)
Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics
![Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics](https://m.media-amazon.com/images/I/61oyF-5u8iL.jpg)
Amazon.com: Connector DB9 RS232 D-SUB Male Serial Adapter 9-pin Port Adapter to Terminal Connector Signal Module with case(Male Connector, DB9 5+5 with case A) : Electronics
![Amazon.com : RS232 Tester Serial DB9 Interface Port Mini Analyzer Loop Back with LED Indicator : Electronics Amazon.com : RS232 Tester Serial DB9 Interface Port Mini Analyzer Loop Back with LED Indicator : Electronics](https://images-na.ssl-images-amazon.com/images/I/71zowD84o1L._AC_UL600_SR600,400_.jpg)
Amazon.com : RS232 Tester Serial DB9 Interface Port Mini Analyzer Loop Back with LED Indicator : Electronics
![Amazon.com: Connector DB9 RS232 D-SUB Female Adapter Serial 9 Pin Port DB9 COB Breakout Terminal Connector Signal Module with Case (Female Connector + Nut) : Electronics Amazon.com: Connector DB9 RS232 D-SUB Female Adapter Serial 9 Pin Port DB9 COB Breakout Terminal Connector Signal Module with Case (Female Connector + Nut) : Electronics](https://m.media-amazon.com/images/I/41cG5mxWVgL._AC_SY1000_.jpg)
Amazon.com: Connector DB9 RS232 D-SUB Female Adapter Serial 9 Pin Port DB9 COB Breakout Terminal Connector Signal Module with Case (Female Connector + Nut) : Electronics
![Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics](https://m.media-amazon.com/images/I/41wL6B6f9SL._AC_SY350_.jpg)
Amazon.com: DTECH 15ft DB9 Serial Cable COM Port Male to Male RS232 Straight Through 9 Pin Data Cord : Electronics
![Amazon.com: DTECH DB9 to DB9 RS232 Serial Cable Male to Male Null Modem Cord Cross TX RX line for Data Communication (5 Feet, Black) : Electronics Amazon.com: DTECH DB9 to DB9 RS232 Serial Cable Male to Male Null Modem Cord Cross TX RX line for Data Communication (5 Feet, Black) : Electronics](https://m.media-amazon.com/images/I/41C0yweYziL._AC_SY580_.jpg)