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Your cart is empty. SABRENT USB Type-C to DB9 Serial (RS-232) Adapter Cable – 6 FT
Upgrade Your Toolkit
The SABRENT USB Type-C to DB9 Serial (RS-232) Adapter Cable brings legacy devices into the modern world. With a 6 FT cable and a Prolific PL2303GS chipset, this adapter ensures reliable and efficient communication between USB Type-C devices and RS-232-enabled equipment.
Reliable and High-Speed Performance
Equipped with USB 2.0 Full Speed support, this adapter delivers data rates from 1bps to 12Mbps. The Prolific PL2303GS chip ensures consistent performance, making it ideal for POS terminals, modems, GPS devices, smart card readers, and industrial systems.
Essential for Professionals
Designed for testing, debugging, and programming, this adapter supports a wide range of devices, including medical equipment, networking hardware, PDAs, and phones. It’s bus-powered, eliminating the need for external power supplies.
Universal Compatibility
This adapter works seamlessly with USB Type-C ports and is compatible with major operating systems. It supports devices requiring an RS-232 interface, making it a versatile
Customer Review
Reviewed in the United States on March 23, 2025
I figured this would be an FTDI based adaptor, like the thousands of others, but it is a Prolific. Can't win 'em all. Having a lot of legacy hardware but a USB-C computer, this will fit your needs with the right driver. I could see it being of most use for a point of sale system, but handy to keep around in the lab for remote apps. Don't expect to ever get 12 MBPS out of any RS-232 port. I think this is a bit mislabelled and having other Sabrent devices, they always seemed to be a bit higher quality. I just wish they validated the speeds it actually works at.
Robert Levandowski Jr.
Reviewed in the United States on March 23, 2025
GOOD:• Genuine Prolific PL-2303 chipset works with standard Prolific drivers• Directly attaches to devices that use a PC-style nine-pin serial connection• Reasonably long cord means you may be able to make the connection with this cord alone• USB-C interface ideal for Mac laptop users who need to make serial connections (like systems administrators)• Shell has a URL in reasonably large type that takes you straight to the driver download page, and a QR code that takes you to the product pageNOT SO GOOD:• Translucent cord cover is relatively high-friction, and in the past, I've found this sort of material doesn't age well• DB-9 shell has hard square edges that aren't comfortable to hold while using, and the inexpensive plastic material is slick: the design makes it harder to grip than it needs to be• You'll still need a dongle to connect to anything that isn't designed to be plugged directly into an IBM PC style DB-9 serial portBOTTOM LINE:A good but not perfect specialty tool for people who need to connect modern laptops to legacy serial equipment.
Richard Smith
Reviewed in the United States on March 18, 2025
I have used many prolific-based USB-serial adapters but never a USB-C model. While technology keeps changing and many laptops only support USB-C now, the need to interface with RS-232 devices via DB-9 just doesn't go away so this adapter allows you to keep with the times (USB-C) while still connecting to the old (DB-9). Works just like my previous adapters. Didn't have any issues setting the baud rate and interfacing with various devices including cameras, console ports, etc. This one should work fine while waiting for the next technology jump.
jessie campbell
Reviewed in the United States on March 17, 2025
works well and i like the usb c port.
Neil Harmon
Reviewed in the United States on March 12, 2025
This cable adapts a Type-C USB to be a standard 9 pin RX-232 connection. I tested with Windows and found it did require that a driver be installed. The cable uses a standard, very common chipset (Prolific) so while the driver step was a bit of a surprise, it was not really a problem.I tested the cable at various speeds (up to 115200 baud) and it worked fine. Although not needed very often these days, RTS/CTS was also supported so I'd call this a full featured cable. Cable construction looked good and I believe the cable should last well.
AJ Tissier
Reviewed in the United States on February 9, 2025
Prolific serial chips are the worst. I can never get them to work properly in any consistent manner. I typically go with FTDI-based adapters as they "just work" without having to jump through hoops to download and load drivers.I got this to be able to console into Cisco switches with my M2 MacBook Pro 14. I plugged the adapter in, and it did not show up in my Cool Term available connections. Looked up and found that Prolific publishes an app in the App Store. This should make things easier, however after installing it, no change. Rebooted, still no change. All of the reviews of the app said install, reboot, works. I uninstalled the app and tried to install drivers from Prolific's website. No joy.I plugged it into a Windows 11 laptop I have. After tracking down drivers I installed them and was working. The drivers included an authenticity check application and the chip checked out as genuine (which is rarely the case, and is what contributes to the most issues everyone has with Prolific drivers as the newest versions of the driver checks for authenticity and prevents the non-genuine device from functioning)
Vile Lizard
Reviewed in the United States on February 7, 2025
This USB/Serial adapter is fine for most basic applications, like accessing console ports, playing with an old modem, talking to vintage equipment, etc. It fails to deliver the claimed maximum speed of 12 Mbps.It does seem to correctly implement the full complement of RS232 signals as commonly found on DB9 connectors, properly handling DTR and RTS (though it does not seem to implement internal flow control, it just passes the signals through). The voltages don't quite meet the full RS232 spec, it only delivers +/- 7V or so, but that's sufficient for most purposes.Works fine at common bit rates up to 230400, above that things get quite wonky. Driving an oscilloscope 10x probe (high impedance) directly off the DB9 connector, the signal is still recognizable at 1Mbps, and would probably decode correctly with a hardware UART. Beyond that, it gets pretty useless. Setting it to 12Mbps is accepted, but the output just looks like a molehill, one slope-sided pulse with no data content. Putting a little load on it seems to make it worse rather than better. It looks like the RS232 driver IC in here just doesn't have the power to drive the lines either high or low with adequate slew rates to achieve high bitrate. It's probably the Sipex SP213EHCA that's referenced in the PL2303 datasheet -- that's only rated up to 500Kbps, which seems about right.Interestingly, the front of the package says "USB-C 5 Gbps" on it, and that's not, either. It's only a USB 1.1 connector, and it registers as a Full Speed (12Mbps) device. Which is fine, considering the application.All in all, it works, and I'll probably find a use for it occasionally if i want to talk to some ancient device using the serial terminal app on my phone. But for a professional, you can probably find a better one, and if you need anything over 500Kbps, forget it.
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