Serial cable, 9-pin extension cable (socket - plug)
StarTech.com 3m Black Straight Through DB9 RS232 Serial Cable - M/F - MXT1003MBK - Serial Cables - CDW.com
25ft Straight Through Serial Cable - M/F - DB9 Cables & DB25 Cables | Cables | StarTech.com
Amazon.com: JUXINICE 4Pack DB9 Connector RS232 Serial Cable 5FT, DB9 Female to Bare Wire,D-SUB 9-Pin Connector RS232 to Bare Wire Cable,9 Wire All Provided with Wiring Terminals-Black : Electronics
USB to RS232 Serial Cable + MAX3232 RS232 to TTL Serial Adapter Converter Module | eBay
USB to TTL Serial Cable - Debug / Console Cable for Raspberry Pi : ID 954 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
TRENDnet USB to Serial 9 Pin Converter Cable Connect a RS 232 Serial Device to a USB 2.0 Port Supports Windows Mac USB 1.1 USB 2.0 USB 3.0 21 Inch Cable Length
Amazon.com: XMSJSIY DB9 Connector RS232 Serial Port Cable DB9 Adapters Solderless 9-Pin COM Port Breakout Replacement Cable Order:235 (Male) -1.5m/4.92Feet : Electronics
serial cable connection Rs232 port - Meade Computerized Telescopes - Cloudy Nights
USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable - Sabrent
Micro Connectors, Inc USB to Dual Serial DB9 Adapter Windows 10/Win 8/7/XP/Vista/Mac E07-162 - The Home Depot
DB9 Connector RS232 Serial Cable ,9 male 15 25 Female to Bare Wire with Cable Marker,DB15 DB25 DB37 D-SUB 37 pin to Bare Wire Ca - AliExpress
Serial Port and Modem Cables
5ft (1.5m) USB to DB9 Male Serial RS232 Adapter Cable | Adapters and Couplers | Audio Video
Tera Grand USB-C to RS232 Serial DB9 Adapter USBC-RS232SCW-06
Serial Cables and Connectors: What Are They, Types, and What to Buy - History-Computer
Should I Use Null Modem or Straight Through Serial Cables? - NI
C2G 1.5ft USB to Serial Cable USB to DB9 Serial RS232 Cable MM Convert a DB9 RS232 serial device to USB great for PDAs digital cameras and many other peripherals - Office
DB9 Male to Female Extension RS 232 Serial Cables - Custom Cable Connection
5 to 9 pin RS232 Serial Cable for PC Connection - HI920011
6 ft RJ45 to DB9 Cisco Console Cable - T1 Cables & Router Cables | Cables | StarTech.com
All you have to learn about serial connector pinouts