I finally found them. The cable is a firmware upload cable that came with our IOGEAR GCS1644 KVMs.
Answer from murisonc on serverfault.comAmazon
amazon.com › db9-cable › s
Amazon.com: Db9 Cable
Explore a wide selection of DB9 serial cables with gold-plated connectors. Perfect for legacy equipment and data communication needs.
ShowMeCables
showmecables.com › by category › serial › db9
DB9 Cables – RS232 Serial Cords - Null Modem | ShowMeCables.com
ShowMeCables null modem cables (DB9) are used to connect two DTE devices together without using a DCE device in between. For this to happen, the transmit (TXD) and receive (RXD) pins on one of the serial connectors are flipped. Depending on your demands and applications, these DB9 cables can ...
RS232 vs. DB9: Advantages & Disadvantages, Differences Explained
Disadvantages of RS232 and DB9: Limited Speed: RS232 is not designed for high-speed communication and is typically slower compared to modern alternatives like USB and Ethernet. Signal Degradation: RS232 signals can suffer from degradation over long cable lengths or in noisy environments, impacting ... More on forums.ni.com
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April 8, 2024Question: Is a DB9 cable the same as a 9-pin D-Sub video cable?
Technically it's DE9, DB9 doesn't exist. But yes, that should be the right one. More on reddit.com
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July 30, 2025DB9 Serial Tester Recommendation(s)
I am developing some PC based software code that must communicate through the USB port to a DB9 serial device via a USB to DB9 cable. I know the serial port on the receiving device works and I know the USB port on my development PS works. What I don’t know is if my code is communicating correctly. More on forum.digikey.com
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January 9, 2025Can anyone tell me what is the difference between RS232 cable and a DB-9 connector?
RS232 connections are frequently implemented using these connectors, but there is a 25 pin connector also. But of course you can solder the cable to the devices directly also, without a DB9 or DB25 connector. More on mathworks.com
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March 6, 2017Videos
06:14
DB9 Soldering: Step-by-Step Guide for Perfect Connections - Easy ...
08:27
RS232 DB9 Termination + Testing - Step-by-Step Guide - YouTube
08:10
DB9 male connector with housing | 9 pin RS-232 - YouTube
01:59
USB to RS-232 DB9 Serial Adapter Cables | StarTech.com - YouTube
Repairing a DB9 Cable The Right Way
01:45
une nouvelle méthode pour souder un #câble de #connexion #DB9 ...
CableWholesale
cablewholesale.com › products › serial-modem-cable › db9-serial-cables.php
Wholesale DB9 Serial Cable for Computer Terminals and Modems
The DB9 RS232 cable is a type of DB9 cable that’s commonly used to connect RS232 devices. These devices include data terminal equipment, such as computer terminals and modems. You can use our wholesale DB9 serial cable in demanding networking applications, especially when you choose our premium-quality RS232 cables.
CommFront
commfront.com › collections › rs232-db9-db25-serial-cables-connectors
RS232 DB9 / DB25 Serial Cables & Connectors – CommFront
This cable can be used for extending your existing RS-232's distance. ... The CBL-DB9F_DB25M-1 is a 10ft (3m) long DB9 female to DB25 male conversion cable. This machine-made, high-quality RS-232 conversion cable comes with a DB9 female connector ...
StarTech.com
startech.com › home › cables › serial cables, parallel cables & ps/2 cables › db9 cables & db25 cables
DB9 Cables & DB25 Cables | Cables | StarTech.com
Our high quality DB-9 and DB-25 cables offer the highest quality and reliability for a variety of serial (RS-232) or parallel (IEEE 1284) applications.
Best Buy
bestbuy.com › best buy › computers & tablets › computer accessories & peripherals › monitor & screen accessories › monitor & video cables
Db9 Cable - Best Buy
A black RS232 serial null modem cable with DB9 connectors, ideal for reliable data transfer connections.
SF Cable
sfcable.com › computer-cables › db9-serial-cable.html
Buy DB9 Serial Cables, Custom DB9 Cable, DB-9 Serial Port Cables Online
Our collection of DB9 Serial Cable includes DB9 M/M 9C Straight Thru Cable, DB9 M/F 9C Straight Thru Cable, DB9 Female to 2 Male Serial Splitter Cables, DB9 Female to 2 Male Serial with Nut, DB9 F/F 9C Straight Thru Cable, DB9 Female to 3.5mm Serial Cables, DB9 Female to Stereo 2.5mm Plug Cables, etc.
MicroRidge
microridge.com › shop › db9-cables › 6-db9-serial-extension-cable
DB9 Serial Extension Cable – 6ft Female to Male | RS-232 - MicroRidge
March 27, 2026 - A DB9 serial extension cable is a straight-through 9-pin cable that extends the physical reach of an existing RS-232 serial connection. With a female connector on one end and a male connector on the other, it inserts inline between two existing ...
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I finally found them. The cable is a firmware upload cable that came with our IOGEAR GCS1644 KVMs.
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We've had them lying around too. They're usually thrown in the box to give you serial console access to a wide variety of gadgets. Have a look for ISDN terminals, video projectors or UPS devices. Could even be a graphing calculator!
StarTech.com
startech.com › home › cables › serial cables, parallel cables & ps/2 cables › db9 cables & db25 cables › scnm9fm2mbk
2m Black DB9 RS232 Serial Null Modem Cable F/M
2m Black DB9 RS232 Serial Null Modem Cable F/M
Connect your serial devices, and transfer your files
Price $9.21
National Instruments
forums.ni.com › community › user groups › product groups › labview interface for arduino (lifa) › labview interface for arduino discussions › rs232 vs. db9: advantages & disadvantages, differences explained
RS232 vs. DB9: Advantages & Disadvantages, Differences Explained - NI Community
April 8, 2024 - Differences Explained: The main ... characteristics of serial communication signals, while DB9 refers specifically to the connector used in RS232 communication, featuring nine pins arranged in a specific configuration....
CablesAndKits
cablesandkits.com › cabling › audio & video cables › dvi & db9 cables
Serial Cable | DB9 Male to Female | 6 Ft | Fast Shipping
DB9 Male to Female Serial Cable, 6ft
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Price $4.80
Reddit
reddit.com › r/vintagecomputers › question: is a db9 cable the same as a 9-pin d-sub video cable?
r/VintageComputers on Reddit: Question: Is a DB9 cable the same as a 9-pin D-Sub video cable?
July 30, 2025 -
I'm trying to connect my C128 to an HDMI monitor. I bought the RGBI-to-HDMI device and it has a connector for a 9-pin D-Sub video cable, according to the description. The C128 has a 9 pin RGBi port for 80 column output. I looked on Amazon and found a 9 ping male-to-male cable:
https://www.amazon.com/dp/B08SM6CCN4?th=1
is this the right cable to connect the C128 to the converter?
US Converters
usconverters.com › serial-cable-db9-male-female
Serial Cable DB9, Male/Female, 6 ft - Straight-Through
Serial Cable DB9, Male/Female, 6 ft - Straight-Through. Usually this serial cable is used to extend an existing serial cable, since it has a male and a female port.
Computer Cable Store
computercablestore.com › pc cables › serial cables › serial cables › 6 ft serial cable - db9 m/m
6 FT Serial Cable - DB9 M/M | Computer Cable Store
6 FT Serial Cable - DB9 M/M
Description · Networx® high performance Fully Loaded Serial Cables are ideal for connecting serial devices to your PC. These cables, used for straight through data communications, are manufactured with a Foil Shield to insure signal integrity and a tough molded hood that will withstand abuse for years to come. · Six foot Serial DB9 Cable · Connector: Male DB9 to Male DB9 · Foil shielded to prevent EMI/RFI Interference · Designed to connect DB9 Serial devices
Price $4.70
Campbell Scientific
campbellsci.com › p17855
17855 - Serial Cable, DB9 Pin (Male) to Pigtail
The other end of the cable has stripped and tinned leads. This cable is commonly used to connect the RS-232 port of an AVW200, cellular modem, or other serial DCE device to the terminals on a data logger.
DigiKey
forum.digikey.com › equipment, tools & supplies › test and measurement
DB9 Serial Tester Recommendation(s) - Test and Measurement - DigiKey TechForum - An Electronic Component and Engineering Solution Forum
January 9, 2025 - I am developing some PC based software code that must communicate through the USB port to a DB9 serial device via a USB to DB9 cable. I know the serial port on the receiving device works and I know the USB port on my development PS works. What I don’t know is if my code is communicating correctly.
Office Depot
officedepot.com › home › electronics › networking & cables › cables › serial cables
Serial Cables - Office Depot
C2G 6ft DB9 M/F Extension Cable - Black - DB-9 Male Serial - DB-9 Female Serial...
L-com
l-com.com › frequently-asked-questions › what-is-a-db9-connector
What is a DB9 Connector?
DB9 Connectors Explained
MathWorks
mathworks.com › matlabcentral › answers › 328331-can-anyone-tell-me-what-is-the-difference-between-rs232-cable-and-a-db-9-connector
Can anyone tell me what is the difference between RS232 cable and a DB-9 connector? - MATLAB Answers - MATLAB Central
March 6, 2017 - https://www.mathworks.com/matl... definition of the serial interface, e.g. the signal voltage and duration. DB9 is the 9 pin connector....