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| 4PORT DB9 Ser USB RS232 Adapter Win Mac Linux | 
 enlarge | Brand: Keyspan
Category: CE
List Price: $149.99
Buy New: $122.60
You Save: $27.39 (18%)
New (48) Used (2) from $122.60
Avg. Customer Rating:  4 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Network Interface: USB
Shipping Weight (lbs): 3
Dimensions (in): 8 x 6.3 x 2.5
MPN: USA-49WG
Model: USA-49WG
UPC: 672603001441
EAN: 0672603001441
ASIN: B000KBIC0E
Availability: Usually ships in 2-3 business days
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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.
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| Customer Reviews:
Keyspan usb-serial adapters superior to others October 9, 2008
I bought both the 4 port Keyspan USB-serial adapter and the single adapter after trying IOGEAR versions. I had various software issues with the IOGEAR when switching ports or plugging in different devices, as it would constantly assign a higher port number. I can only think it is a result of its incompatability with Windows XP (in the fine print of the instructions). The Keyspan USB-serial devices have worked extremely well and can easily switch ports. The difference is huge.
Reduces Clutter June 20, 2008
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.
Keyspan adapters are cool June 17, 2008
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. [...]
Works fine June 9, 2008
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.
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