DWI Dragonwave

    FOR:  DRAGONWAVE INC.

AIM, TSX SYMBOL:  DWI

March 17, 2008

Dragonwave's New Horizon Duo Breaks Speed Barrier for Wireless Networks

Horizon Duo cost-efficiently delivers up to 1.6 Gbps per link, resetting capacity standard for carrier
wireless solutions

OTTAWA, CANADA--(Marketwire - March 17, 2008) - DragonWave Inc. (AIM:DWI)(TSX:DWI), a leading global
supplier of next-generation wireless networks, today announced Horizon Duo, the latest addition to its
Horizon portfolio of native Ethernet radios. Horizon Duo delivers industry-leading capacity of up to
1.6 Gbps per link and lowest-cost-per-bit performance for wireless carriers offering increasingly
bandwidth-intensive WiMAX and 4G services.

DragonWave will show its new solution in Booth 5852 at CTIA Wireless(R) in the Las Vegas Convention
Center, April 1-3.

"With Horizon Duo, DragonWave is dramatically reducing our risk in the rollout of new services and
cutting the ongoing cost of churn in our network," said Richard S. Kingston, chief executive officer
of Business Only Broadband. "Our growth in bandwidth need is never ending, and Horizon Duo gives us
both the high-end capacity and incremental, simple scalability to cost-effectively accommodate this
growth."

With a simple indoor-unit replacement, the installed base of DragonWave AirPair radios can be upgraded
easily to Horizon Duo for a four-times boost in capacity without changing up-mast gear or cabling.
Furthermore, the new DragonWave solution shares DragonWave's software-controlled flex bandwidth
feature, enabling users to expand capacity without re-engineering traffic patterns or re-visiting
antenna sites.

"Due to the construction costs and timelines required to deploy fiber to so many cell sites, carriers
are considering the economic benefit of committing larger percentages of their networks to microwave
links," said Michael Howard, Principal Analyst at Infonetics Research. "With the requirement for
larger backhaul capacities and the arrival of Ethernet radios rivaling the capacity of fiber-based
solutions, we are seeing an increasing reliance on microwave by carriers eager to realize the
reductions in both capital and operational expenditures."

"We are breaking the speed barrier for carrier wireless networks with a core, high-capacity solution
built for our carrier customers' ongoing growth in high-bandwidth services", added Alan Solheim, vice
president of product management at DragonWave. "This innovative platform unquestionably expands
DragonWave's industry lead in flexibility, capacity and cost efficiency."

Horizon Duo shares the firmware defined modem technology of DragonWave's Horizon Compact and the
pseudowire capability of the company's Unite product, enabling integration of Ethernet and Time
Division Multiplexing (TDM) traffic across a single packet-based network. DragonWave's Horizon Duo
operates within both licensed and unlicensed radio frequencies in the 11-to-38-GHz range, ensuring
interference-free performance for customers' traffic. The DragonWave solution provides scalable, ultra-
low-latency, wire-speed native Ethernet connectivity up to 1.6 Gbps full duplex and is a highly
reliable platform enabling 99.999-percent service availability. The system is extremely easy to deploy
and manage, with a full suite of network-management options. Horizon Duo supports integrated link
aggregation, XPIC, 1+1 switching, adaptive modulation and an integrated regenerator configuration.
Using an optional plug-in with Horizon Duo, a carrier could carry 16 E1/T1, two DS3/E3 or OC3/STM1
services back to the core fiber network over a single Gigabit Ethernet connection.

About DragonWave

DragonWave(TM) is a leading provider of high-capacity wireless Ethernet equipment used in emerging IP
networks. DragonWave designs, develops, and markets carrier-grade microwave radio frequency networking
equipment that wirelessly transmit broadband voice, video and other data. DragonWave's wireless
Ethernet products, which are based on a native Ethernet platform, function as a wireless extension to
an existing fiber-optic core telecommunications network. The principal application for DragonWave's
products is the backhaul function in a wireless communications network. Additional applications for
DragonWave's products include point-to-point transport in private networks, including municipal and
enterprise networks. DragonWave's corporate headquarters is located in Ottawa, Ontario, with sales
locations in Europe, Middle East and North America. The company's Web site is
http://www.dragonwaveinc.com


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FOR FURTHER INFORMATION PLEASE CONTACT:

DragonWave Inc.
Nadine Kittle
Marketing Communications
613-599-9991 ext 2262
nkittle@dragonwaveinc.com

OR

Canaccord Adams Limited
Chris Bowman / Andrew Chubb
44 20 7050 6500

OR

Interprose Public Relations
Cathy Palmen
(for DragonWave)
408-268-8112
cathy.palmen@interprosepr.com

OR

Weber Shandwick Financial
John Moriarty
(for DragonWave)
020 7067 0736
Mob: 07971 402224
jmoriarty@webershandwick.com

                                                                
DragonWave Inc.



                                                                

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