Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip

(8 customer reviews)


The Mini USB serial adapter Hi-Speed 920K FTDI Chip PC DB-9 RS232 is supported by Windows 11. With its compact design the Serial-B is easily traveled with can can connect directly to your laptop or desktop.


  • Compact design
  • LED’s support power, TX, and RX signals
  • Plug and Play features
  • Supports Windows 7, 8, 10, and 11, Linux, OSX

Product Documents

In stock

Purchase from Retailer

Model #: SERIAL-B Categories: , Tag:

Didn't Find What You Were Looking For? Support


Supported by Windows 11

Mini USB Serial Adapter with its Built-In surge protection (USB to RS232) allows the safe addition of a serial port by simply connecting to a single USB Port on your computer. The USB Serial Adapter device offers High-Speed and the convenience of a plug-and-play feature so your time isn’t taken after it’s connected. The DB9 Mini USB Serial Adapter port is seen as a COM port by your computer and is available for use by any program that accesses COM ports. Perfect for use with modems, PDA’s, GPS, Industrial Devices, cell phones, digital cameras and more, it’s a hassle free device with Hi-Speed results!

We’ve written a blog post with regard to Serial Driver Support including information on Windows Operating System life cycle. With its Windows 11 support the RS232 adapter is easily connected to a host USB port without the need for an additional bulky power source. Its LED status indicators for power, TX, and RX are a great visual while in operation.

USB to Serial DB-9 FTDI AdapterFeatures & Specifications:

  • Hi-Speed USB Serial Adapter, PC, MAC, supports Cisco Break Sequence
  • No power supply needed, plug and play
  • Indication LED’s for Power, TX and RX
  • No IRQs, DMA or required. No IRQ Conflicts
  • Baud rate: 300bps to 460.8Kbps
  • USB 1.1 and 2.0 compliant
  • Automatic send data control
  • Auto detection of data speed
  • Zero delay automatic transmission
  • Built-in static and surge protection up to 600W
  • Supports Windows 7, 8, 10, and 11, Linux, OSX

OS Support:

  • Windows 7, 8, 10, 11
  • Linux
  • Mac OS 10.X

Product Specifications:

  • Product Name: Mini USB Serial adapter
  • Product Model: SERIAL-B
  • Interface: USB RS232
  • Material: Plastic
  • color: Black

Package Contents:

  • Mini USB Serial adapter
  • Manual (download)
  • Latest FTDI Driver (download

Additional information

Weight .15 lbs
Dimensions 4 × 4 × .5 in





USB to RS232

Supported OS

, , , , ,




1 year from date of purchase.

Chip Set

Drivers & Manuals

8 reviews for Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip

  1. SpiceMan

    Excellent little adapter, at a very reasonable price !!!
    The adapter arrived very quickly, and performs flawlessly! The tiny size (all in one, without a cable between connectors) is ideal for my needs. Love the built-in LED indicators, that show all the data transfer activity. Using this to interface my vintage Garmin GPS V device to my Windows 10 Laptop for transferring maps back and forth. Working great !This adapter came with a mini CD containing drivers, but wasn’t needed because Windows found the driver automatically.Excellent little adapter, at a very reasonable price !!!

  2. Cesar Garcia Canul

    Great adapter
    Great adapter, function so good

  3. Expat Kiwi

    Ideal USB to RS232 adapter. Looked high and low online for a USB to RS232 serial adapter. This adapter is perfect as it allows normal RS232 type cables to connect to it and to use the thumb screws to keep the cable connected. Also has LEDs in the body to show TX/RX data condition.

  4. dwmorris

    A great and reasonably priced USB serial adapter. I use it for ham radio (packet radio and USB to HF rig control).

  5. Dave

    This USB to DB9 converter works just fine for connecting Hyperterminal software to console port on Cisco switches and routers.

  6. Roy Edward Wagner Jr.

    Good product for connecting GENLINK serial connection to newer computers with serial. I like how it can be moved from one USB port to another without having to reconfigure. And when used with IOGEAR GUE216 USB BOOSTER Extension cable it allows longer connection. I like the LEDs that confirm data transfer, which helps to analyze/confirm connection.

  7. John Oden

    I wish all setups were this easy. Use it with my Windows 7 virtual machine on my MacBook Air for programming my dual band HAM radio and reading data from Onset HOBO’s.

  8. J. Basham

    I plugged it in, windows 7 downloads a driver, then it works. I used it with Cisco console cable, i used it on an outback power systems mate, works fine. great quality item for all the old junk with serial ports. has a little LED on it that flashes when it is a) initialized by the computer, and b) when your receiving data over it. I don’t know if that is very helpful, but…

Add a review

Your email address will not be published. Required fields are marked *