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Mini USB to RS-232 Serial Adapter DB-9 Male Converter
USB to RS232 Adapter
The USBG-232MINI Mini USB RS-232 to Serial Adapter can be utilized through an existing USB Port to work with your legacy serial connections. It’s great for newer technologies with no serial port connections.
- Extremely compact RS232 Adapter with TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND signals.
- USB 2.0 Compliant – Backward compatible for legacy serial devices.
- High-Speed DB-9 pin connection with 128 byte FIFO and LED Status.
- Designed with a unique system load reduction feature.
Model# USBG-232MINI
$22.95 Volume Pricing?
In stock
The USBG-232MINI serial adapter uses a Mini USB RS-232 format to synchronize your Handhelds, Digital Cameras, or other device currently using a serial port and works with your legacy serial connections. Connecting your serial devices to the newer computer equipment using USB bus technology gives you an advantage of adding one or more serial devices when needed. This adapter is hot plug compatible via its USB connector. The USBG-232MINI Mini USB RS-232 Serial Adapter is great for newer technologies with no serial port connections.
The high-speed DB-9 serial port with the 128 byte FIFO allows for high-speed communication between devices, even in heavy loaded systems. One of the unique features of this adapter is reduction of the system load. The serial port also allows unusual speed settings like 500.000bps. The USBG-232MINI also comes with a 3 foot USB Extension cable! (Pictured Below)
Additional Features:
- Adds one RS-232 serial port by connecting to a USB port.
- Includes 3 foot USB extension cable.
- Compact size cable type converter with cable length of 25 cm
- Installed as standard Windows COM port
- Full RS-232 modem control signals and hardware/software flow control
- Transmit Buffer: 512 bytes
- Receive Buffer: 512 bytes
- RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
- High speed serial port with the baud rate up to 921.6K bps
- Non-standard baudrates supported
- LED status indicators for TxD and RxD for easy port monitoring and diagnostic
- Serial port protected with surge protection of 10KV
- Powered by USB port, no external power adapter required
- Easy plug and play installation and RS-232 device connection
- COM port number assigned can be changed to any COM port number required
- Works with USB 1.1 & 2.0 host port
- Dimensions: (Adapter only) 65.50mm(L) x37.10mm(W) x 18.80mm(H)
OS Support:
- Windows Windows 7, Windows 8, and 10
- Linux and Mac OS 10.X
- Note: As of June 2018 Windows XP is no longer supported. Please contact us if you require Windows XP support.
Package Contents
- USBG-232Mini Serial adapter
- USB A male to A female cable
USBG-232MINI Compatibility LIST
GPS / Chartplotters / Fish Finders:
- Magellan Sportrak GPS
- Garmin GPS III Plus
- Garmin eTrex Legend
- Garmin 76S GPS
- Garmin Rino 120
- Garmin Etrex
- Garmin GPS V
- Peets weather station
- Sky Caddie
- SkyCaddie SG2 Golf GPS
- Humminbird 767
- Megellan MAP330
WEATHER STATION:
- Oregon Scientific WMR-968
- La Crosse WS-3610
- Davis Vantage Pro II weather station
AMATEUR RADIO:
- Yaseu FT-950 Amateur Radio
- Kenwood TM-D710 ham radio
- TenTec RX320 shortwave radio receiver
- Kenwood TM-D710 dual band Amateur radio
Routers: (Connects to Cisco Console cable)
- Cisco 871
Cisco 2900/3900 XL
Cisco ASA5505
Cisco 678 DSL
Cisco 2621XM
MODEMS:
- US Robotics Courier dual standard V.34
- Zoom 56k external fax modem
Embroidery Machines:
- Bernina 180 embroidery machine
OBDII Data Analyers:
- Innova 3140 / 3160 OBD2
- Equus 3130 Innova Diagnostic Code Scanner
- Autel MaxiDAS
Telescopes / Solar Controllers:
- TS-60 Morningstar Solar Controller
- Celestron 5SE Telescope
- Celestron CGEM astronomy tracking mount
POLICE SCANNER RADIO:
- Uniden BCD396XT programmable radio
- Uniden 780XLT scanner
- Uniden Bearcat BC346XT scanner
CNC Machines:
- Strippit HECC80-3 CNC
PlusDeck
Suunto X6HR watch
Altec Digitizer Tablet
Data Logging Digital Multi-meter
Conext uninterrupted power supply
Automation System SLC 500
Keile Micro Controller
SEL-751A relays (needs null modem adapter & acselerator software )
URC remote controls MX-850
Summa Graphics D15 vinyl cutter
AUDIO DEVICES:
- Anthem MRX 300 A/V receiver
- Anthem MRX 500 receiver
- NuVo music system
INDUSTRIAL EQUIPMENT:
- Brother wire EDM machine
- Graphtec plotter
MegaSquirt car tuning
SBC ALIX Firewall
Lynx6 AL5B robot arm (Karmic RC) Matlab 2009b
Pelouze scale
DVDO iScan Duo
Stenograph Writers:
- Stentura 200SRT
- Stentura 400SRT
- Stentura 500
- Stentura 6000
- Stentura 6000LX
- Stentura 8000
- Stentura 8000LX
- WAVE
- DIAMANTE
APRS unit (Byonics RTG
iRobot Create
FreeScale Codewarrior
Technological Arts Adapt9S12C32 MCU
X10 CM11A
Crestron programmer
Zebra Label Printers
Product Specifications
| Compliance |
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| Mechanical |
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| USB |
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| Serial Attributes |
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| Software |
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| Other Data |
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Technical Specifications:
| USB Bus | |
| Compliance | USB 1.0/1.1 compliant, USB 2.0 compatible |
| Speed | 12 Mbps, full-speed USB |
| FIFO | 128 byte transmit FIFO 384 receive FIFO |
| Serial Interface | |
| Port Type | RS-232 |
| Number of Ports | 1 |
| Connectors | DB9 male |
| Serial Line Protection | |
| ESD Protection | 10KV |
| Serial Port Speed | |
| Baudrate | 300 bps to 921.6k bps |
| Serial Communication Parameters | |
| Data Bits | 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | RTS/CTS, XON/XOFF |
| Serial Signals | |
| RS-232 | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI |
| Driver Support | |
| OS | Windows 7, Vista, 2003, XP (WHQL certified) and 2000 Linux Kernel 2.4 and up built-in support |
| Power Supply | |
| Input | Bus-powered No external power adapter required |
| Mechanical | |
| Chassis | Plastic, ABS |
| Environmental | |
| Operating Temperature | 0 to 55 °C (32 to 131 °F) |
| Operating Humidity | 5 to 95% RH |
| Storage Temperature | -20 to 75 °C (-4 to 167 °F) |
| RS-232 DB9 Male | |||||||||||||||||||||||||||||||||||||||||
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RS-232 DB9 Male Connector Pin-outs |
RS-232 Signal Pin-outs of DB-9 Male |
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22 reviews for Mini USB to RS-232 Serial Adapter DB-9 Male Converter
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Optional Accessories
The 4 port USB 2.0 USB Hub has certain accessories that work with it. These hub accessories are what you can order if needed for this hub.
Serial Cables
$1.95
In stock
Product Documentation & Drivers
Product Documentation
Software & Drivers
Need drawings, CAD files, or other compliance documentation? Click HERE
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Marge Teilhaber –
Works great with my W7Pro desktop and laptops connected to a Cybra. I have several of them. Hopefully when I get new machines with W10, the drivers will be easily available but that’s not for a long while and I have no reason to think it’ll be a problem.
SJH –
Works great with my MacBook Pro running OSX 10.10 (Yosemite).
Mark Scheuer –
Using it with dBx Driverack and old IBM laptop. No compatibility issues.
Manuel Fernando Toledo –
is very usefull, recommended
Ronald Wagner –
Seems to be OK. Did not work for my application, but that was my fault.
“Gadget User” –
Work fine with my odd ball stuff
John –
The USB RS-232 Serial Adapter DB-9 Male worked perfect with my female serial cable to the PC computer that only had a USB port. It read my weather station data to the weather program without any problems. The price was reasonable and delivery was reasonable that included tracking. I highly recommend this adapter if you have a female serial cable and need to go to the USB ports of any newer computer that don’t have serial ports anymore.
David Garnett –
I have purchased an even cheaper RS232 to USB adapter that did not work with Windows 7. This one works well enough that I have purchased two of them.
Carl E. Meece III –
Works perfectly for using old serial equipment over USB. Works great with Windows 7 64-bit.
Also works with Windows XP running as a virtual machine inside VMware Player.
This device uses a GENUINE FTDI chip, so it is not affected by the newest drivers that disable counterfeit chips.
starkca –
What can I say, it’s a RS-232 to USB adapter, what else is there to say? It’s small, compact, may prevent you from inserting another USB device if the ports are fairly close together, but that’s what a USB extension cable is for.
J. Fulton –
Nothing special, it does what it needs to do, in a compact package. Great for any old serial device you still have.
Charles P. Corbett –
NOT YET, IT DOES’NT DO WHAT I EXPECTEDY YET I WILL HAVE TO PLAY WITH IT SOME MORE WHEN I GET A CHANCE.
Customer –
I bought this because I was having performance issues with another brand of adapter. I had read the reviews on this unit and it was touted as one that was highly compatible and trouble-free. This unit immediately cured all the issues I had been experiencing with my previous one, and I am extremely pleased with this unit. Skip the cheapies and go straight for this one if you want to minimize adapter-related problems.
wtxnitz –
This uses the FTDI chipset which is the only one which will work on Lion. The prolific chip
used in some other adapters just doesn’t work with Lion. A half star off for software on mini cd – not cool for Mac laptops. Another half star for the bulky connection. It blocks the other USB ports. I had to get a short USB extneder cable to use my mouse. Otherwise, with the right drivers, it DOES work with Lion.
J R T –
Product works exactly as advertised, gave me the serial port connectivity I needed to configure my switches and storage. Very fast shipping and didnt require any additional software on my Win 7 Dell laptop
Les1 –
work as promised finialy was able to update maps in my garmin 76s after replacing computors deliever within time said on ordered
Mary Ann Gephart –
My new HP laptop with Windows 7 does not have an RS-232 compatible port which is necessary for my old Garmin GPSmap 76. This serial adapter plugged right in and fixed my problem right out of the box. I am very happy with it.
H. Raymond “breadvan” –
Quality product with a nice build quality, driver installation went smoothly on my Windows 7 x64 notebook. Will buy from manufacturer again.
Steve in DFW Texas –
Plugged it into my system and it has worked like a champ.
Before you use the adapter you’ll want to run “Windows Update” off the Start menu. For Windows 7 you won’t need the mini CD-ROM that comes with the adapter. Run “Windows Update” two separate times because there are two things Microsoft wants to install.
– FTDI – Other hardware – USB Serial Port
– FTDI – Other hardware – USB Serial Converter
After those two software updates are installed you’re ready to use the adapter.
This unit also came with a very nice shielded USB extension cable too. I’m using it for a very old Garmin GPS device. The Garmin software found the serial port very easily.
tmanners –
This serial usb adapter that has the FTDI chipset. The Prolific chipset adapters do not work as well as these. This worked the first time I pluged it in perfectly. If you are having trouble with the prolific chipset adapters, buy this one. I don’t give 5 stars much, but this one is a 5 star item! The price is a little high, but the free shipping makes up for it!
The drivers on the CD it came with i’m sure are fine, but they may be 1 rev behind. I got the latest from the main website.
H. Direen –
I tried 3 or 4 other manufactures of USB to RS-232 adapters and all had issues with the software I was developing. Some USB to RS-232 adapters even blue-screened Windows. This is the only adapter that worked flawlessly. The USBGear device uses the FTDI chipset and has certified Windows drivers. I highly recommend this USB to RS-232 serial adapter.
electriccafe –
There’s a driver CD but it does NOT include Windows-7..
Turns out the CD is still useful.. upon insertion a web page pops up with local driver links AND a weblink to newer drivers at [..]. Meantime the CD plays a little video explaining how to install the adapter and configure COM port settings. Pretty nice!
You don’t need to save the CD since the adapter says ‘USBGEAR’ right on it, so you’ll always know where to get drivers.
5 stars for a nice gadget with good back end support!