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Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.

4.5 4.5 out of 5 stars 629 ratings

$14.99
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3 ft
Thumbscrews
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Purchase options and add-ons

Compatible Devices RS232 Serial Devices
Specific Uses For Product RS232 Serial DB9 Devices
Connector Type DB9 Serial Connector
Color Black
Item dimensions L x W x H 5.9 x 3.9 x 0.9 inches

About this item

  • OS SUPPORT - Supports Windows 11, 10, 8, 7, Vista, 2000, XP, 98, Apple MAC OS8 or higher, Linux 2.4.0 and later, OpenBSD 2.9 and later & FreeBSD 4.7 and later. This cable is NOT used for computer VGA monitors which use a HDB15 (15-pin) VGA connector.
  • USB2 TO RS232 - Installed as a standard Windows COM ports, Full RS-232 modem control signals, RS-232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • CONNECT SERIAL DB9 DEVICES - Provides instant connectivity with modems, ISDN terminal adapter, PDA, bar code scanner, label printer, and devices with DB9 SERIAL ports. This cable is NOT used for VGA monitors which use a HDB15 (15-pin) VGA connector.
  • FTDI CHIPSET - Built with FTDI chipset, Powered by USB port, Download the latest driver from the Tera Grand website. This cable is NOT used for VGA monitors which use a HDB15 (15-pin) VGA connector.
  • IMPORTANT - This cable is NOT used for computer VGA monitors which use a HDB15 (15-pin) VGA connector. This cable is used for RS232 serial devices. Please double check if your RS232 Serial device needs a cable with Male Thumbscrews or Female Hex Jack Nuts. These connector styles are not interchangeable.

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This item: Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.
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From the manufacturer

USB 2.0 to RS232 Serial DB9 Adapter Win 10 FTDI

Universal RS-232 Compatibility and Easy Connectivity

Supported OS

WIDE COMPATIBILITY:

Connect a device with a DB9 RS232 Serial port to the USB-A port on your computer or laptop. Supports RS232 Serial DB9 Interface and up to 1Mbps data transfer rate. Installed as a standard Windows COM port, Full RS232 modem control signals, RS232 data signals; TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND.

USB-A to RS232 Serial DB9

CONNECT RS232 SERIAL DB9 DEVICES:

Provides instant connectivity with modems, ISDN terminal adapter, PDA, bar code scanner, label printer, and devices with DB9 RS232 Serial ports. Please double-check if your RS232 Serial device needs a cable with Male Thumbscrews or Female Hex Nuts. These connector styles are not interchangeable.

USB-A to RS232 Serial DB9

FTDI CHIPSET and OS SUPPORT:

Built with FTDI chipset for wide stability and compatibility with Windows 11/ 10/ 8/ 7/ Vista/ XP/ 2000, Linux, and Mac OS. Supports remote wake-up and power management. Powered by USB-C port, no external power adapter is required. Download the latest driver from the Tera Grand website.

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Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.
Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.
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Price$14.99$13.97$20.99$12.99$11.99$22.88
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Get it as soon as Saturday, Jan 11
Get it as soon as Saturday, Jan 11
Get it as soon as Saturday, Jan 11
Get it as soon as Saturday, Jan 11
Get it as soon as Saturday, Jan 11
Get it as soon as Saturday, Jan 11
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Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.


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Product Description

Tera Grand - Premium USB 2.0 to RS232 Serial DB9 Adapter Cable 3 Feet - Built with FTDI Chipset and Male Thumbscrews. This Cable is NOT Used for VGA Monitor.

Customer reviews

4.5 out of 5 stars
629 global ratings

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Customers say

Customers find the electronic cable easy to install and use. It works well with various operating systems without needing additional drivers. The build quality is praised as sturdy and reliable, with a robust FTDI chip and sealed housing. Many consider it a good value for money, saving them from buying unnecessary cables. While opinions differ on connectivity, most customers are satisfied with the cable's performance and ease of installation.

AI-generated from the text of customer reviews

153 customers mention "Works well"143 positive10 negative

Customers are satisfied with the product. They mention it works well for plotters, UPSs, and laptops. The cable is plug-and-play and easy to install. Some customers find it a good choice for their needs.

"...to communicate with a few of our vinyl plotters (Gerber) and they work flawlessly...." Read more

"...They handle the max baud rate of the radio rigs fine, work fine with Windows 11 and have a non-weird chip set - no driver worries!..." Read more

"...Electrically this works very well, just don't overlook the physical limitations - like I did." Read more

"...Time for an upgrade. Purchased this cable and it was plug and play, no problems...." Read more

36 customers mention "Ease of installation"36 positive0 negative

Customers find the installation process easy. They say it's simple to plug and play, installs automatically without needing to download drivers, and works great with Windows 10. The directions included are helpful for installing the cable properly.

"...Dead simple to use - true plug and play...." Read more

"...Time for an upgrade. Purchased this cable and it was plug and play, no problems...." Read more

"...It was instantly recognized by my computer and drivers were automatically downloaded from Windows Update...." Read more

"...I plugged it in and the devices worked. Easy. Can’t say more than that." Read more

34 customers mention "Driver compatibility"32 positive2 negative

Customers appreciate the cable's driver compatibility. They find it works without installing any drivers, and the drivers are automatically downloaded from Windows Update. Some mention that the cables come with the proper driver to get them up and running.

"...On the bright side, it needed no installation under Windows 10 and seems to work like a charm...." Read more

"...This cable worked right out of the box with NO driver download." Read more

"...But after configuring Flrig, the software immediately communicated with the radio. No other problems." Read more

"...It has the FTDI chipset that was recommended by the mount manufacturer and worked perfectly on the first try...." Read more

26 customers mention "Build quality"26 positive0 negative

Customers appreciate the cable's build quality. They find it well-made, inexpensive, and reliable. The FTDI chip is more robust than Prolific, making it an ideal USB-serial adapter. The sturdy sealed housing keeps the circuitry safe from harm.

"...This cable worked perfectly. Well made and inexpensive, with fast shipping." Read more

"...It works really great and is very reliable and haven’t had any communication issues between the server and the UPS. I recommend it." Read more

"...And of course the FTDI chip is more robust than Prolific. This is the ideal usb-serial adapter." Read more

"This is the only Serial to USB adapter one needs. Excellent build, drivers are up-to-date, works on OS X Sierra (10.12) and excellent to hook up old..." Read more

25 customers mention "Value for money"25 positive0 negative

Customers find the product useful and good value for money. They say it's easy to install and works well at a great price. Some mention it saves them from buying unnecessary cables.

"...Definitely less expensive." Read more

"...This cable worked perfectly. Well made and inexpensive, with fast shipping." Read more

"...when you might need the extra length and besides it is cheaper than the shorter ones! Make sure to choose nuts or thumbscrews before you order...." Read more

"...Cost effective and does the job properly." Read more

21 customers mention "Cable quality"21 positive0 negative

Customers are satisfied with the cable's performance. They say it works well, all signal lines are functional, and the modem is working properly. The computer recognizes the cable immediately.

"These are great. I use them to run my ham radio rigs via the PC...." Read more

"...This cable worked perfectly. Well made and inexpensive, with fast shipping." Read more

"...My brand new Dell Windows 11 computer recognized the cable immediately and off I went with programming my police scanners and ham radios...." Read more

"The cable works fantastic. Allows me to use a laptop without a serial connector to connect to stuff i work on. I use windows 7, 10...." Read more

9 customers mention "Usb to serial port"9 positive0 negative

Customers like the USB to serial port adapter. It's a functional and durable 9-pin adapter that works with Windows 10. Many say it's a perfect replacement for an old gigaware USB to serial cable.

"...read and my own experience the Tera Grand really is the primo solution for USB to Serial. It may even be the only good solution...." Read more

"Used for converting from usb to rs232, os was windows 8.1. Downloaded and took right off. Works better than this rating system...." Read more

"...This is the ideal usb-serial adapter." Read more

"...This cable was able to give me the proper USB to serial connection I needed to flash and reinstall the firmware and save myself a whole mess of..." Read more

8 customers mention "Connectivity"4 positive4 negative

Customers have different experiences with the connectivity. Some report reliable and fast communication between the server and UPS, with no issues through software. However, others mention that it would not communicate with their CMM machine or plotter.

"...Communication is fast (for RS-232C) and transparent...." Read more

"My computer was not communicating with my plotter. Plotter would not cut out designs without going haywire with its cutting...." Read more

"...It works really great and is very reliable and haven’t had any communication issues between the server and the UPS. I recommend it." Read more

"...had two of these and they both failed after 6 months and would just lose connection. They are just not dependable for long term use." Read more

FTDI. Hex nuts. Perfect.
5 out of 5 stars
FTDI. Hex nuts. Perfect.
FTDI chip, and nuts instead of screws, which is more correct for a DTE device like this (ie: same as a legacy port on the back of a pc). Means you can screw a modem or null-modem cable to the adapter and make a clean cable that doesn't fall apart. And of course the FTDI chip is more robust than Prolific. This is the ideal usb-serial adapter.
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Top reviews from the United States

  • Reviewed in the United States on May 14, 2023
    Size: 10 ftStyle: ThumbscrewsVerified Purchase
    Bought a couple of these cables for my boss to use at work on his old Windows XP system.
    We use them to communicate with a few of our vinyl plotters (Gerber) and they work flawlessly.

    There was 1 small problem with the driver though, they require that you download it. However, the ones they have are not compatible with XP, so I had to find an older version of the driver. It did take a little bit of time to track one down.

    Drivers for Windows 7, 8,10 etc. are easily obtainable.

    These work as good as the cards you would need to buy for the newer systems, as they don't come with RS232 Serial Ports these days. so these cables are probably the better investment.

    Definitely less expensive.
  • Reviewed in the United States on February 28, 2023
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    These are great. I use them to run my ham radio rigs via the PC. They handle the max baud rate of the radio rigs fine, work fine with Windows 11 and have a non-weird chip set - no driver worries! Dead simple to use - true plug and play. The only caveat is that all of my ham radio rigs all have male serial port plugs on them and this adapter has a male plug. This necessitates a straight through gender changer, so I keep some of those on hand, as I've never found these USB to Serial Port adapters with the female plug. Otherwise, these are perfect!!!
    One person found this helpful
    Report
  • Reviewed in the United States on February 23, 2024
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    Needed an old school 9 pin vga cable to add in an older vga monitor. This cable worked perfectly. Well made and inexpensive, with fast shipping.
  • Reviewed in the United States on June 23, 2019
    Size: 3 ftStyle: Hex Jack NutsVerified Purchase
    I wanted to give this thing 3 stars, but that would not be fair. Mostly that has to do with my frustration from the physical format of thing - which is clear in the photo that I did not pay attention to.

    1) It's short. 3 feet is not enough for most uses, be aware of that
    2) Most frustrating. The DB9 end has female screw holes, not male screws. And they are not removable. Yes, just like in the photo. But this means I could not connect it to any serial port on any piece of gear I have. Why would you make it that way?? I had to buy a serial extension cable with male fasteners on each end just to use this.

    On the bright side, it needed no installation under Windows 10 and seems to work like a charm. There is a tiny driver CD_ROM what comes with it, I did not need it.

    Electrically this works very well, just don't overlook the physical limitations - like I did.
    One person found this helpful
    Report
  • Reviewed in the United States on October 14, 2024
    Size: 3 ftStyle: Hex Jack NutsVerified Purchase
    Used this to connect Innovate dual LC-2 serial to my HP laptop USB running Windows 11 Home version. This cable worked right out of the box with NO driver download.
    One person found this helpful
    Report
  • Reviewed in the United States on June 3, 2024
    Size: 3 ftStyle: Hex Jack NutsVerified Purchase
    Keep this short and sweet.

    My existing USB-A to RS-232 (db9) cable would not work or be recognized under Windows 11. The drivers for the chipsets used in the cable were not updated by the vendor for whatever reason. Maybe to sell new cables, who knows.

    Time for an upgrade. Purchased this cable and it was plug and play, no problems.

    I use the cable for programming radio scanners that listen to public safety.

    This cable was for an older radio that uses a little older programming interface.

    No problems experienced to date. Have used the cable a couple of times.
    One person found this helpful
    Report
  • Reviewed in the United States on September 4, 2019
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    For a serial connection to a headless server, JBOD, etc. this is great. You just have to know what you are getting into:

    For me it works fine with no need for drivers in OSX High Sierra using the 3rd party Serial app.

    The play is to get one of these and then adapters for various use cases. Some use RJ11 for serial, some RJ45, and the pin outs are NOT universal. There’s no one size fits all! So, it’s critical to be aware of the required pin out before getting the second piece of the puzzle. If you don’t know what that is it might be wise to get one of the reconfigurable serial plugs that are plentiful on amazon.

    In my case with a couple of different desired connections and infrequent use I thought the two piece solution with adapters would be best so I could mix and match.
  • Reviewed in the United States on May 11, 2024
    Size: 3 ftStyle: Hex Jack NutsVerified Purchase
    Works great

Top reviews from other countries

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  • Real
    5.0 out of 5 stars Five Stars
    Reviewed in Canada on February 22, 2018
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    Received in time. Works perfectly. Thank you
  • Cliente Amazon
    4.0 out of 5 stars Solo le falla un adaptador hembra-hembra
    Reviewed in Spain on December 12, 2016
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    Si te encuentras con el caso de que sea un puerto serie macho, tienes un problema. Añadirle uno no le costaria a la marca tan apenas nada, y evitaría disgustos, solo por eso no le doy las 5 estrellas, por lo demás, funciona como se espera.
  • Amazon Customer
    1.0 out of 5 stars Dissapointed with non functional device
    Reviewed in India on March 10, 2017
    Size: 6 ftStyle: ThumbscrewsVerified Purchase
    Not functional. Loaded latest driver fron net. When connecting to laptop, pc responds that usb device malfunctioned. In uiversal serial bus controller under Device properties, it shows unknown device. Tried alloptions under document.
    Wanted to have stable usb to serial convertor against Cadyce Ca-US9 and i paid thrice the cost for this Tera Grand considering FTDI chipset is more stable than Prolific chipset
    I am very much dissapointed with this product.
    I tried again and again three days and i tried other laptops also
  • Tony Monsua
    4.0 out of 5 stars Excelente compatibilidad
    Reviewed in Mexico on August 7, 2015
    Size: 6 ftStyle: Hex Jack NutsVerified Purchase
    Éste no es un simple cable, contiene un chip que lo hace compatible con los mayores sistemas operativos. Una opción segura y barata. Incluye drivers.