October 12, 1999

SONNET G4 UPGRADES ALL BLUE & WHITE G3s

IRVINE, CALIFORNIA – OCTOBER 12, 1999. Sonnet Technologies, Inc., the
leading manufacturer of performance upgrade products for Apple Macintosh
computers, announces that its Encore G4 processor upgrades are now
compatible with all versions of Blue&White G3 machines. The Sonnet card
ships with a software utility that will disable a G4 ROM block in the
Blue&White G3 computer if present.

Like Sonnet’s Encore G3 products, Sonnet Encore G4 cards have the unique
ability to be installed in any Power Mac G3 without requiring any switch or
jumper change. In a Blue&White G3, the 400MHz Sonnet Encore hardware will
self-configure to run at 4x the 100MHz bus. In the G3 Desktop, Server, Mini
Tower, or All-in-one, the 400MHz Encore will auto-sense the 66 MHz bus and
configure itself to run at 6x bus speed.

The Encore G4 400/1M upgrade card will be available in November 1999 at an
estimated price of $999. The 450 and 500 MHz versions will be available in
Q1 2000.

While Sonnet is excited to be offering the G4 technology to increase
performance for specialized applications, the company remains committed to
the Macintosh G3 upgrade market as well. Sonnet will maintain its robust
product lines of G3 upgrade cards and will continue to introduce
ever-higher speed G3 products as the processors become available. Power Mac
owners can now upgrade to 500 MHz with Sonnet’s G3 product line.

About Sonnet Technologies, Inc.
Sonnet Technologies, Inc. is headquartered in Irvine, California, and is
the worlds leading Macintosh upgrade company. Founded in 1986, Sonnet
upgrades more Macintosh models with processor upgrade cards than any other
company. Sonnet G3 and G4 processor upgrade products are easy to install,
are backed by a three-year warranty, include free technical support, and
require no switches, jumpers, or control panels. To locate an authorized
reseller or purchase product, visit the Sonnet Technologies web site at
(http://www.sonnettech.com), or call the company at 1-800-786-6260 (USA and
Canada) or 1-949-261-2800.