Stay connected to your business as well as online friends and family via the high-speed Sprint Mobile Broadband Network with the Sierra Wireless 598U USB modem. A MicroSD expansion slot provides convenient back up storage or file transfer on memory cards of up to 32 GB, so you can carry high resolution images, large music files, presentations and other necessary documents with you wherever you go and share them as needed. And with the latest version of Sprint Mobile Broadband software, you can take advantage of the optional Sprint Navigation service.

The laptop clip and 20-inch USB extension cable provide convenient usage options.
The 598U modem is optimized for Sprint’s Evolution-Data Optimized (EV-DO) Revolution A (Rev. A) network, which provides average download speeds of 600 kilobits per second (kbps) to 1.4 megabits and average upload speeds of 350 to 500 kbps. When connecting within a Rev. A coverage area, the U727 can download a 1 MB email attachment in about 8 seconds and upload the same-sized file in less than 13 seconds.

Mobile users can access:

* E-mail with large attachments
* Corporate Intranet and Internet
* Digital imaging
* Location-based applications
* Video/audio streaming
* Rich messaging
* Bandwidth intensive applications for sales and customer service
* Easy installation and activation

Other features include:

* Sprint’s SmartView automatic installation software, available for both Mac and PC users, installs directly from the modem on first insertion.
* Simple Activation with just “one” more click after software installation.
* MicroSD memory expansion to 32 GB (card not included)
* Employs CDMA wireless technology authentication and identification system for top-notch security.
* OS compatibility: Windows Vista/XP/2000; Macintosh OS X 10.3.9 or higher and Linux.
* Easy installation with the software CD provided in the box.
* New innovative design with graphics that light up when the device is inserted into a laptop.

Review By Pcmag

A small, rectangular USB modem, the 0.8-ounce 598U measures a tiny 3.1 by 0.9 by 0.44 inches. Its shiny black shell is adorned with a big, yellow Sprint logo that lights up when the device is powered. There’s also a blue power light, and an orange LED on top lights up when you’re connected. On the side, there’s a port to attach an external antenna and a microSD memory card slot. We tested the microSD card slot with a speedy SanDisk 8GB Extreme card, uploading and downloading files from a PC at a disappointing one-tenth the speed of SanDisk’s own card reader. It can also be difficult to get microSD cards out of the recessed slot.

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Review By Mobile-broadband-reviews

The 598U comes with some good features that are becoming standard in USB broadband cards (particularly from Sierra Wireless). It has a 32 GB microSD slot that goes above and beyond what most flash drives offer. It’s practically an iPod/emergency backup solution.

In addition to this, it comes packaged with Sierra Wireless’ TruInstall ©. What this means is that no CD should be required for installation. In the past, one would still need a Sprint CD to install the actual software to activate the device on the network. This led some of our readers to ask “Do I need a CD for the CD-less installation?”. Didn’t exactly earn manufacturers cool points. Not so anymore.

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Review By Siftwire

Other features of the 598U USB modem includes instant online access, advanced GPS support simultaneous access to navigation and location applications, the microSD card slot expandable up to 32GB and Sprint SmartViewSM automatic installation of software which can be used by Mac and PC users. The software allows quick and hands-free activation of the modem.

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Review By Evdoinfo

As with the Compass 597 before it, the Sierra 598U ships with no software CD because everything you need for Mac or Windows is in on board memory and auto-installs upon insertion (so long as software isn’t already installed). Additionally, the Sierra 598U takes advantage of Sprint’s “One-Touch” activation feature, simplifying the process to get your device fully operational on the Sprint Mobile Broadband network. The 598U requires Windows XP or Vista (no info on Win2K support) or Mac OSX version 10.4 or later, including Leopard 10.5

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