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Cables4computer C4C-USB-2920 FTDI Chipset High Speed USB 2.0 to Serial RS-232 DB-9 Converter

4.6 out of 5 stars 134 customer reviews
| 10 answered questions

Price: $12.76 & FREE Shipping
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  • Perfect for use with modems, PDA's, cell phones, digital cameras and more
  • WITH FTDI CHIPSET, Supports data transfer rates up to 1Mbps.
  • Supports remote wake-up and power management
  • Supports Windows 98SE, 2000, XP, Vista, 7 and Mac OS V8.6 or Higher
  • USB-2920 USB 2.0 to Serial DB9 Adapter
  • 2.5 feet Black
8 new from $11.75
$12.76 & FREE Shipping In Stock. Sold by cables4computer and Fulfilled by Amazon.

Frequently Bought Together

  • Cables4computer C4C-USB-2920 FTDI Chipset High Speed USB 2.0 to Serial RS-232 DB-9 Converter
  • +
  • Sabrent USB 2.0 to Serial (9-Pin) DB-9 RS-232 Adapter Cable 6ft Cable [FTDI Chipset] (CB-FTDI)
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  • TRENDnet USB to Serial Converter, USB 1.1 to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 10/8.1/8/7, Mac OS X 10.6 and Above, 26 inch length, TU-S9
Total price: $38.74
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This item Cables4computer C4C-USB-2920 FTDI Chipset High Speed USB 2.0 to Serial RS-232 DB-9 Converter
Customer Rating 4 out of 5 stars (134) 4 out of 5 stars (197) 4 out of 5 stars (463) 4 out of 5 stars (1792)
Price $12.76 $14.99 $9.99 $10.99
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Sold By cables4computer Store4PC Store4PC Amazon.com
Item Dimensions 1.8 x 5.8 x 3.6 in 5.4 x 9.2 x 1.4 in 5.1 x 7.3 x 0.9 in 7 x 9 x 2 in
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Product Description

This adapter is the easiest way to add a serial port to your computer. Many PDAs, digital cameras, GPS units, barcode scanners and other equipment require a serial connection and many newer computers don't have serial ports. This fully plug and play adapter is perfect for people with the latest high performance USB only computers. Includes a 32" long USB extension Cable. Speed USB 2.0 to Serial RS-232 DB-9 Converter - Supports Windows 7, Vista, XP, 2000, 98, Linux and Mac/USB TO SERIAL ADAPTER with FTDI Chipset.


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Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Customer Reviews

Top Customer Reviews

Verified Purchase
Workmanship and functionality is great. Just what was needed to help my amateur radio communicate with my laptop. Laptop recognized the converter immediately with no other configuration requirements.
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Verified Purchase
This product is not listed as supporting Windows 8 on Amazon, but it says it does on the packaging. I plugged it in and before I had a chance to insert the driver CD, Windows 8 automatically found the driver and installed. It works just as advertised, something that many other products of this type don't. I would highly recommend it.

Update: This device worked so well that I bought 2 more for an application that required 3 serial ports. They work together just fine.
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Verified Purchase
This is the 3rd USB to RS-232 converter I have purchased for my application. The previous 2 which were not FTDI chipset based never communicated properly or reliably with my old serial device. All the forums suggested spending $30+ for FTDI based devices to gain reliability. This very inexpensive device which....installed easily....maintains port consistency...communicates without any faults even on a windows7 laptop. To end many hours of frustration, I highly recommend this device.
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Verified Purchase
My review is aimed at Amateur Radio operators who want a USB to serial DB-9 adapter to allow their old CI-V and programming cables to work on their radios.

This USB to Serial adapter works flawlessly for me. Here's the scenario: I have an older programming cable with DB-9 to 3.5mm 3-conductor plug. I've used it on many PCs with various Windows operating systems to program Icom, Yaesu, and Kenwood radios (with proper 3.5mm to various adapters) with legacy serial connectors, or more recently, a Lenovo T400 with a 2504 docking station with DB-9 serial connector.

I could not get any Prolific chipset USB to serial adapter to work with my cable on a Lenovo T410 running Windows 8.1. This adapter is recognized by both the T400 and T410 by Windows 7 and Windows 8, respectively (no need to use the driver CD). My old DB-9 cable now works perfectly plugged into the adapter's DB-9 socket.

These programming cables can be a tricky business, so I'm confident most other DB-9 based devices would be happy with this USB serial port.

Given the low price of this adapter, I'm very happy.
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Verified Purchase
Minor: Picture shows over-molded out to the end, cable came with a 3' USB M-F cable. works the same, no complaints
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Verified Purchase
Fixes the stupidity of manufactures not putting serial ports on laptops. I need the serial port to configure network and server devices. This with PuTTY fo free is great
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By Dennis Sims on August 18, 2013
Verified Purchase
I needed this for an old program that controls my device. It installed easily and works great on my xp laptop.
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Verified Purchase
linux works out of the box with this. syslog shows ftdi on connect. seems like a good price for this.
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