![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._AC_UF894,1000_QL80_.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
![CableVantage 9 Pin RS-232 DB9 Male to Male M/M Serial Cable Gender Changer Coupler Adapter - Walmart.com CableVantage 9 Pin RS-232 DB9 Male to Male M/M Serial Cable Gender Changer Coupler Adapter - Walmart.com](https://i5.walmartimages.com/seo/CableVantage-9-Pin-RS-232-DB9-Male-to-Male-M-M-Serial-Cable-Gender-Changer-Coupler-Adapter_c156e666-d394-4a28-a24b-3362dbe60a68.64ca965cfb0a1c559042c0c43a4c087c.jpeg)
CableVantage 9 Pin RS-232 DB9 Male to Male M/M Serial Cable Gender Changer Coupler Adapter - Walmart.com
![1pcs DB9 Female Male PCB Mount Serial Port Solder Type D-Sub RS232 / 485 Com Connector 9Pin Socket 9P Adapter & Plastic Housing - AliExpress 1pcs DB9 Female Male PCB Mount Serial Port Solder Type D-Sub RS232 / 485 Com Connector 9Pin Socket 9P Adapter & Plastic Housing - AliExpress](https://ae01.alicdn.com/kf/Sb449b9bdda504479a07bfdfab28bd8e2x.jpg_640x640Q90.jpg_.webp)
1pcs DB9 Female Male PCB Mount Serial Port Solder Type D-Sub RS232 / 485 Com Connector 9Pin Socket 9P Adapter & Plastic Housing - AliExpress
Tripp Lite Modular Serial Adapter to Ethernet Console Server - serial adapter - DB-9 to RJ-45 - B090-A9M - Cable Connectors - CDW.com
StarTech.com DB9 RS232 Serial Null Modem Adapter - Null Modem Adapter - NM9MF - Cable Connectors - CDW.com
![Micro Connectors, Inc USB to Serial DB9 Adapter for Windows 10/Win 8/ 7/ XP/Vista E07-160 - The Home Depot Micro Connectors, Inc USB to Serial DB9 Adapter for Windows 10/Win 8/ 7/ XP/Vista E07-160 - The Home Depot](https://images.thdstatic.com/productImages/8c6ca120-bd11-4dd9-8745-e994a74ec43b/svn/micro-connectors-inc-usb-cables-e07-160-64_600.jpg)
Micro Connectors, Inc USB to Serial DB9 Adapter for Windows 10/Win 8/ 7/ XP/Vista E07-160 - The Home Depot
![Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics](https://m.media-amazon.com/images/I/61olKBs7UBL.jpg)
Amazon.com: DTech Serial Cable to USB Adapter DB9 Male RS232 Port Supports Windows 11 10 8 7 Mac (6 Feet, PL2303) : Electronics
![Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/5883/5883029_sd.jpg)
Insignia™ 1.3' USB-to-RS-232 (DB9) PDA/Serial Adapter Cable, with Prolific Chipset Black NS-PU99501 - Best Buy
![USB C to Serial Adapter Cable RS232 DB9 - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com USB C to Serial Adapter Cable RS232 DB9 - Serial Cards & Adapters | Add-on Cards & Peripherals | StarTech.com](https://media.startech.com/cms/products/gallery_large/icusb232c.main.jpg)