- When the iMac and Macintosh computer systems decided to go with the USB interface port over the old serial port, some Mac owners were a little upset. Previous Mac computers had serial ports for printers and other peripherals
- The USA-28X from Keyspan fits into one USB port and provides 2 serial interface ports to enable use of your original Mac peripherals
- Easily plugs into a USB port on an iMac, iBook, current G4 Macintosh
- Draws its power from the USB connection -- a power adapter is not required
- Provides two RS-422 mini-DIN8 ports
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Product Description
From the Manufacturer
There's a good reason why we sell more Mac USB serial adapters than any other company. Our years of experience in making PCI serial cards for Macintosh make us much more knowledgeable about Macintosh serial technology.
We applied this expertise to produced the first USB serial adapter for Mac OS in October 1998. As Apple released Mac OS X, we added Mac OS X drivers for the Twin Serial Adapter.
This adapter is recommended by dozens of serial devices manufacturers and this adapter has been certified by Apple for use with Final Cut Pro (to connect to external video decks).
Product Description
The Top Selling USB Serial Adapter For Macintosh! There's a good reason why we sell more Mac USB serial adapters than any other company. Our years of experience in making PCI serial cards for Macintosh make us much more knowledgeable about Macintosh serial technology. We applied this expertise to produced the first USB serial adapter for Mac OS in October 1998. As Apple released Mac OS X, we added Mac OS X drivers for the Twin Serial Adapter. This adapter is recommended by dozens of serial devices manufacturers and this adapter has been certified by Apple for use with Final Cut Pro (to connect to external video decks).
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Most Helpful Customer Reviews
8 of 8 people found the following review helpful:
5.0 out of 5 stars
Great and functional device,
By Steven J Friedman (Merion, pa USA) - See all my reviews
This review is from: Keyspan USB Twin Serial Adapter (Electronics)
This adapter allows printers w/ regular serial connections to be hooked up via/ usb to an imac, b&w G3, g4 or cube. It comes w/ all necessary drivers but you must order the proper Serial cable if you do not have one. On keyspan.com their is a great list of supported printers. Other then the print deskjetdirect for networks this is the best solution for hooking up older printers or non usb printers to new apple computers.
1 of 1 people found the following review helpful:
5.0 out of 5 stars
Keeps your serial devices alive!,
This review is from: Keyspan USB Twin Serial Adapter (Electronics)
If you need to connect a serial printer or other device to Mac OS X, you're in luck with the USA-28x. You'll have to sweat some details though.First of all, there are no serial drivers built into OS X. For your Mac to even recognize the USA-28x at all, you'll have to go to Keyspan's website (now Tripp-Lite: google it) and download the driver appropriate for your version of OS X. Install and reboot - the driver is a kernel extension. That's the easy part! Next, you have to use the proper software to communicate with whatever serial device you're using. For example, if you want to print using an old Apple Imagewriter with your brand new iMac, there is an open source driver available from The Linux Foundation (google it). If all you need is a terminal emulator, there are some free ones, but I can't recommend any since none are very good. Fortunately there is a reasonably priced terminal emulator called ZOC from a company called Emtec software. Google it too. Good luck!
1 of 1 people found the following review helpful:
4.0 out of 5 stars
Serial technology is still alive on the Macintosh!,
This review is from: Keyspan USB Twin Serial Adapter (Electronics)
I am a software developer for a Point-of-Sale program that is used by thousands of stores. We have relied on the Keyspan 28x for years to provide us with compatibility with the older RS-232 technology. Even today, 6 years after Apple stopped producing Macs with serial ports and replaced them with USB, the computer industry and the peripheral industry lagged behind. Now, there are many peripherals that support USB, but there are still many used and new RS-232 and RS-422 devices that the Keyspan opens up to us.Serial devices can last for years. We have many many clients who are still using Keyspans. Even today. We are programming for USB, and we believe that USB is the future, but some of our clients prefer RS-232 Serial and the required Keyspan 28x. The Keyspan 28x is not perfect. I found that it didn't work on my eMac that I purchased in May 2003 when booting from OS X, but it works most of the time for what we do. After adjusting our program for OS X or using the Keyspan with older Macs in OS 9, most Macs and peripherals that we support work well with the Keyspan. I believe enough in the Keyspans that I am selling them on Amazon. Kaydell Leavitt
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