2m Black DB9 RS232 Serial Null Modem Cable by StarTech.com

Guillaume DELANGE: Fonction comme attendu, répond parfaitement à mon besoin

France on Nov 03, 2023

TR: conforme

France on Oct 23, 2023

Stefano Bruni: Cavo seriale femmina-femmina lungo 2 metri che fa benissimo il suo lavoro. Funziona a dovere senza dare problemi. Costo basso per un prodotto di buona qualità. Non è la prima volta che uso cavi di questo marchio e mi ci sono sempre trovato bene, i materiali che usano sono resistenti e i cavi rispettano le prestazioni promesse.

Italy on May 29, 2023

Andrea L.: L’ho usato per programmare un miniserver Apu2 con successo

Italy on Apr 13, 2023

Charles: I bought this cable and used to for programming a managed network switch. Item came as described and fast shipping was also given. I would recommend this cable to anyone needing a null modem cable.

United States on Mar 10, 2023

Mr. Lynn E. Bailey: Theses are sturdy cables that work well.

United States on Jul 16, 2021

Gadget-Guy: What I liked about it - is - that it worked.

Not much "not" to like.

If you find yourself in a situation where you need one of these critters, your life has a taken a turn for the worse.

RS232 has gone the way of the DoDo bird...
Unless, you work on archaic electronic equipment that belongs in a museum.

Ergo, My need for a RS232 Null Cable.

Laptops and/or tablets and/or smartphones no longer support a RS232 (aka Serial Port)
You'll need a USB to RS232 adaptor for a start + drivers + a way to see if the simulated port is working.
National Instruments has sumthun called NI-Max, which will setup and confirm that the adapter is working.

This particular cable (Female to Female) was just what I was looking for.
The (older than dirt) oscilloscope I was trying to talk to - only had a RS232 communication port with a Male 9 pin cannon connector.
The USB to RS232 adapter had a Male 9 pin cannon connector.
The Null cable is configured such that it expects to screw on to threaded sockets.
The oscilloscope had them, the adapter did not.
It still works - you just can't jiggle the connects much.

Using NI-Max, I was able to...

United States on Mar 10, 2021

Paul Geoffrion: Cable quality is good, true null modem RS-232 cable. Worked for router management. Great service from Amazon.

United States on Feb 02, 2021

Amazon Customer: This and Laplink make it possible to transfer files to my ancient beloved 486.

Thanks, seller!

Canada on Dec 30, 2020

James C.: Using it with a pair of  TRENDnet USB to Serial Converter, Connect a RS-232 Serial Device to a USB Port, Easy Installation, Universal Plug & Play, TU-S9  adapters and added tester,  GGLABS Mini RS-232 DB9 monitor and breakout adapter . A nice set up for testing PPP connections between Linux systems. Just don't ask why I need PPP connections ;) Also handy for connecting to DB-9 serial consoles. I like using the cable, tester, and a USB serial adapter for this because I can see what signals are active. I pushed it past 115.2k -- can't remember the speed, but it was about 4 times faster. Zero errors using Kermit to move a 2M file.

United States on Dec 19, 2017