GUIDE TO USB SERIAL ADAPTERS

Sonnet Allegro USB2 Serial Network Adapter

Manufacturer : SONNET TECHNOLOGIES
In Stock : 15

List Price:	$25.99
Price:	$23.23
You Save:	$2.76 (11%)

Features

High-speed USB 2.0 PCI Adapter card
Transfer rates up to 480 Mb/s
Four external connectors
Very easy to install and use
Three year limited warranty

Product Description

USB connections are everywhere - chances are if you purchase a device that plugs into a computer, it uses a USB connector. Not all USB peripherals perform the same - many of the latest operate at high-speed and push data up to 40 times faster than standard USB. But you'll need a new connection to get maximum performance - the USB 1.1 connections on your computer won't do. Add the low cost Sonnet Allegro USB 2.0 PCI adapter card to your computer (install it in any available PCI slot) and bring it up to speed with the latest USB technology, "simply fast"!

Customer Reviews

Average Rating of 5.00 out of 19 reviews

Rating :
Deep Sleep compatibility - Scott Schuckert, Feb 26, 2008

One issue that has plagued add-in USB cards for the Macintosh for years is problems with power saving. Either the computer will not sleep, will crash on waking or sleeping, or it will lose contact with the card and attached devices. This card, when used with Mac OS 10.5.2 specifically, seems to eliminate these problems. According to email from Sonnet support, this was fixed in the 10.5 beta, broken in 10.5 and 10.5.1, and now works properly. My G5 will enter deep sleep, and wake correctly, even with a USB floppy drive connected and a disk in the drive. Will other cards now work properly? Maybe, but so far only Sonnet has actually said so in writing. I'm very happy!

Rating :
Simple to install, works perfectly - Henry C. Wolford, Feb 15, 2008

I ordered this to add USB2 to my Mac G4 MDD. As advertised, I opened the side door of the Mac, installed the card, turned on the Mac, and it worked perfectly from the very start. Now I can enjoy my new iPod which requires USB2 to synch. Good product at a good price.

Rating :
Works like a champ for Mac! - Chris Peterson, Feb 09, 2008

Buying the Sonnet Allegro is definitely the way to go if you are looking to install high speed USB expansion in your Mac tower. There's not too much else out there that is compatible with Mac.....sadly. The only downside is the sleep issue, which is pretty much a problem no matter which product you buy. Just shut down the computer every night!

Rating :
Good Quality, Poor Installation Instructions. - thezoed, Feb 08, 2008

Having never been well versed in the PCI Slot area, I assumed the number of pins would match the slots, which it didn't and the instructions were nearly non-existent on the installation. However, once installed it work as advertised, and I was well pleased.

Rating :
No problem - Gary S. B. Lim, Feb 08, 2008

Put in my G4 dual processor. No problem at all. Once it boots up, the OS recognizes it right away.

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