Product DescriptionThe 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
Average Rating:
Rating: - Keyspan usb-serial adapters superior to others
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.
Rating: - Reduces Clutter
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.)
Rating: - Keyspan adapters are cool
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. [...]
Rating: - Works fine
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 ... Read More
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Electronics : 4PORT DB9 Ser USB RS232 Adapter Win Mac Linux
