4PORT DB9 Ser USB RS232 Adapter Win Mac Linux

Other products by Keyspan

Product Details

• Product Dimensions: 8 x 6.2 x 2.5 inches ; 1.8 pounds
• Shipping Weight: 1 pounds (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B000KBIC0E
• Item model number: USA-49WG
• Average Customer Review: 5.0 out of 5 stars  See all reviews (6 customer reviews)
• Date first available at Amazon.com: November 12, 2006

Product Description

Product Description

The USB 4-Port Serial Adapter makes it easy to connect four RS-232 serial devices to a USB port on a PC or Mac. Linux is not currently supported. This adapter is ideal for industrial and enterprise markets where there is a need to connect serial devices to a PC for process control, data collection, or point of sale applications. It is also ideal for connecting modems, fax modems, or terminals to a server.

Customer Reviews

Most Helpful Customer Reviews

4 of 4 people found the following review helpful:

5.0 out of 5 stars Works fine, June 9, 2008

By	Harvey Sugar "Embedded software engineer" (Washington, DC) - See all my reviews (REAL NAME)

I've been using this USB serial interface for a couple of years now. I've used it under Windows XP, Fedora and Ubuntu Linux. The Windows XP drivers are available on Keyspan's website. Fedora and Ubuntu (except version 7.10) include the drivers in the standard distribution.

The serial interfaces are solid, providing good RS-232 drive levels. The interfaces can also handle decent bit rates. I've used it up to 115200 BPS. It's also very convenient the way it is packaged. Especially in embedded systems programming, it's nice to have four serial ports right on your desk top with just the one USB cable running to the computer.

3 of 3 people found the following review helpful:

5.0 out of 5 stars Reduces Clutter, June 20, 2008

By	Dan M. Beadle "Gadget Designer" (Lake Tahoe, NV) - See all my reviews (REAL NAME)

I have used Keyspans individual port adapters for several years. They work flawlessly and are quite fast. I do a lot of work on high speed serial devices running without flow control. The devices keep up.

I found that I often had 4 single Keyspans cluttering my desk. I wanted this device. When I finally found it, it was a no-brainer. It works flawlessly. (I had hoped it would be less expensive than 4 singles - and it is - just a little.)

A nice little benefit is I use their static mapping tool to make the ports appear as COM11 thru COM14, eliminating past confusion about which port goes with which device.

Serial is officially a legacy device. New PCs don't have serial ports. But, if you have a lot of serial devices to manage, this is a great way to simplify cabling and management hassles.

2 of 2 people found the following review helpful:

5.0 out of 5 stars Keyspan adapters are cool, June 17, 2008

By	C. Hoogendyk "Minimalist Sysadmin" (Amherst, MA USA) - See all my reviews (REAL NAME)

I have used both the dual port and 4 port Keyspan adapters in a Mac OS X environment. Not much to say. They just work. Driver install is simple and creates appropriate /dev/tty... serial ports to access them. I've used CKermit in a terminal window to access the serial ports, and I've used screen (which comes pre-installed in Mac OS X) in a terminal window to access the serial ports. That has the added advantage that I can share the session. [...]