SONNET ANNOUNCES G4 UPGRADE FOR 6100, 7100, 8100 POWER MACS

IRVINE, CALIFORNIA December 3, 1999. Sonnet Technologies, the worldwide
market share leader in processor upgrade cards for Apple Macintosh
computers, announces a 360 MHz G4 upgrade for 6100, 7100 and 8100 NuBus
Power Macs. The Sonnet product is available immediately. For the first
time, NuBus Power Mac owners can reap the benefits of G4 technology at an
estimated US price of $599.

The Crescendo G4/NuBus is rated at 360 MHz with 1M backside cache at a 2:1
ratio. The G4 processor will run at 360 in 40 MHz bus machines, such as the
Power Mac 7100/80, 8100/80, and Power Computing Power 120. The G4 processor
is limited to run at 9x bus speed, however, and the Crescendo G4/NuBus will
run at 270, 300, and 330 MHz in 30, 33.3 and 36.7 MHz bus machines,
respectively. The Sonnet Crescendo G4/NuBus includes Altivec Enabling
software, complete Mac OS 9 Velocity Engine compatibility, Adobe
Photoshop Altivec Plug-In Enabling software, Sonnet Metronome Profiler
Utility software, and unequaled ease-of-installation and reliability.
Compatibility
- Power Mac 6100, 7100, 8100
- Performa 611X
- WGS 6150, 8150, 9150
- Power Computing 100, 120
- Radius System 100, 81/110

Altivec Enabling Software
The Sonnet Crescendo G4 upgrade ships with superior Altivec Enabling
software, giving all applications access to the Altivec processing engine
in the G4 processor. The unique Sonnet Enabler extends Altivec support to
even MacsBug, which is an important distinction for software developers and
sophisticated users.

Mac OS 9 Velocity Engine and Adobe Photoshop Altivec Compatibility Sonnet
Crescendo G4 Enabler fully supports the Apple Velocity Engine libraries
included in Mac OS 9. The Adobe Photoshop 5.5 Altivec Plug-ins, Altivec
Core, Lighting Effects, as well as future Altivec plug-ins are also enabled
with the Sonnet software. Adobe Photoshop 5.5 users can expect a
specialized boost out of the Sonnet Crescendo G4 processor. Scientific and
audio/video authoring applications will also benefit significantly from a
Sonnet G4 upgrade.

Sonnet Metronome
Every Sonnet G3 and G4 upgrade includes the Metronome Profiler Utility
software, giving users useful system performance information such as
processor type, speed, temperature, bus speed, and cache size.

Simply Fast
Sonnet Crescendo G4 cards have unequaled ease-of-installation and
reliability. Sonnet Crescendo cards work in every compatible Macintosh
without the need for the antiquated methods of hardware configuration. Free
from switches, jumpers, and control panels, the Sonnet Crescendo G3 and G4
families are Simply Fast. Sonnet processor cards will automatically
configure to the maximum possible reliable speed based on the machine and
rating of the processor. Sonnet products are guaranteed to operate reliably
over variations of machine, time and temperature. The ability to move an
upgrade card from one machine to another without the need to tweak any
jumpers, switches or control panels is a significant advantage to resellers
and organizations that want to maximize their flexibility, while minimizing
the long term technical support requirements.

About Sonnet Technologies, Inc.
Sonnet Technologies, Inc. is headquartered in Irvine, California, and is
the world 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.