DB9 null modem male to female slimline data transfer serial port adapter 2 Pack

As advertised, quick delivery

connection good

Used this with a Ugreen USB to RS232 serial adapter because I needed a null modem crossover to make the computer interface to my laser engraver. Works great while not adding excess length and weight.

Great product, but delivery was very unclear. I ended up walking all the way around the building to find it and did not. The package was placed in the mailbox for some reason and the only way I found it was that there was an obscure note about the driver dropped it in there instead of simply going in the front door and delivering it. Thats lazy work for sure.

These worked perfectly for my application. They arrived promptly, which is important now that we don't have a local store like Radio Shack to go to and get them.

These adapters were solidly built and worked as advertised. Fast delivery and excellent packaging.

Having been born in 94, I had never heard of null modem communication. Suddenly, the place I work for needs to start testing RF cables. They bought me an older piece of equipment that can be interfaced with via an "RS232" appearing port. Grabbed my trusty usb to serial cable. Couldn't get anything. Took a week of emails back a forth with the OEM to figure out I need a "null modem cable" to plug my cable into first. ANYWAYYY, this fixed everything after having to run software on a virtual box. I assume that means this works perfectly for whatever it is this adapter is for. 11/10 still have no idea what null modem communication is but I'm impressed.

Item as described and both works great.