Best Serial Cables of 2025

“When I purchased a surround sound setup for my bedroom, I encountered a common dilemma. The subwoofer placement was problematic due to cable length. I took a chance on this cable, and thankfully, it worked perfectly! I have been using it daily without issues, and it provides extra length for future moves.”

“I bought this extension for my Logitech shifter after upgrading to a G923 for GT7 in PSVR2. The installation was seamless, although the cable is thicker, making routing a bit tight. Overall, my setup is much more convenient now!”

“I needed this cable to connect my second monitor to my new CPU. Unfortunately, I realized it wasn't the right size, but I plan to keep it. It’s sturdy and arrived quickly, making it a worthwhile addition to my collection.”

"I found this adapter to be good quality and it works perfectly for my needs. I'm using it on a Juniper EX2200 and couldn't be happier!"

"After struggling with an old adapter, I decided to purchase this one. It was recognized instantly on my Windows 10 machine, and I was relieved to see it has a genuine PL-2303 TA chip. No more counterfeit issues!"

"This adapter is excellent for connecting my RS-232 devices to a USB port. It works great, but I wish the drivers weren’t stuck on a CD that I can't use anymore!"

"I needed a DB9 serial cable to control my PTC camera for a video broadcast, and it's nice to have one available when necessary."

"The 30' cable I used was solidly constructed and worked perfectly on the first try, which was crucial for my project."

"In my automation work, I use the DB9 regularly. This cable is fast connecting and the 100ft length is incredibly helpful. I'd definitely purchase it again if needed."

"I needed this for a damaged Mikrotik router RB450Gx4, and it worked like a charm. Objective accomplished."

"I bought this to use as a console cable but had no communication with my Cisco switch. Despite that, it seems nice and well-made. I also ordered a null modem adapter which did work."

"This cable worked perfectly for my setup. I connected my STRHIGP firewall device and used it with pfsense on my laptop. With my Linux OS, the drivers were included, making it hassle-free!"

"I needed to connect a serial dialup modem, and this cable did the job perfectly! Only a straight serial cable works, so this was just what I needed."

"I found this cable to be exactly what I was looking for to connect my legacy device to a Linux workstation. The quality is great and feels sturdy."

"This cable works flawlessly with my USRobotics Modem on both Windows Server 2019 and Windows 10. I see no faults in its performance."

"I needed some 9 pin serial cables for a switch box. These worked perfectly for my mouse with my 90s PCs."

"As someone who has recently started exploring retro computers, this 6 pack of cables gives me plenty of options. I can even connect them for longer lengths without any issues between my computers."

"YCS has always provided great cables, and these are no exception. They are excellent extension cables from 9 pin male to female, and I would definitely recommend them for connecting old devices."

“I found this cable to be nicely made and perfect for connecting a remote VFD keypad in my control panel, handling electrical noise exceptionally well.”

“After my old cable broke, I needed something reliable to program telephone systems. This cable is perfect and easy to transport.”

“It works great for my needs. I just wish the price was a little lower, but overall, I’m satisfied.”

“This is exactly what I needed for my plotter; it performs so much better than USB connections.”

“I never used the gearshift for my Logitech G27 steering wheel because I had to remove the wheel from my Wheelstand Pro each time. Now, I can easily detach the gearshift and store it separately. This cable extension allowed me to connect the gearshift seamlessly, and despite being a tight fit, it worked perfectly without any functionality issues.”

“I bought this to extend the joystick port on my old Apple IIGS computer. It has been working great, making it much easier for me to switch joysticks.”

“These two cables were inexpensive and arrived on time. They perform exactly as I needed for my portable seismometer operating at 9600 baud.”

"I needed a 25' cable to extend RS232 comms for an older serial connection. I ended up chaining three together for a 45' length, and it performed flawlessly in the lab and when installed in machinery. I would definitely buy again."

"I purchased this cable to connect my treadmill to its standing desk console, and it works exactly as expected. The little screws on the sides hold well, although they seem a bit delicate. As long as I don’t force it, everything is fine. A practical cord for a practical task!"

"Every time I need a serial cable, I have to buy one. This one works fine, and I used it to configure a switch through a Raspberry Pi. It does the job, but it's a bit of a hassle to keep buying them."

"I received it in good condition and it works just as expected. It's just a cable, so I don't have much more to add."

"I needed this for a serial mouse extension due to my vintage computer's location, but it didn't work. Windows 98 stopped recognizing my mouse when I used it, but it worked again once I removed the cable."

"It's well made and functions without any external noise interference. I've used it in industrial communication networks without any problems."