PowerDsine Joins Ethernet Alliance; The Ethernet Alliance Supports the Advancement of All IEEE 802 Ethernet Standards

PowerDsine Ltd. (Nasdaq: PDSN), a leader in Power over
Ethernet (PoE) solutions, announced today that it has joined as a
principal member of the Ethernet Alliance, an industry group dedicated
to the continued success and expansion of Ethernet technology.
PowerDsine will play a key role in helping the Ethernet Alliance
fulfill its mission of helping member companies increase acceptance
and reduce time-to-market of Ethernet products by supporting the
advancement of existing and emerging Ethernet technologies.
   PowerDsine joins a reputable group of over 60 members of the
Ethernet Alliance, including its founders: 3Com, ADC, Agere Systems,
AMCC, Aquantia, Broadcom, Force10 Networks, Foundry Networks, Intel,
Lawrence Berkeley Labs, Pioneer Corporation, Quake Technologies,
Samsung, Sun Microsystems, Tehuti Networks, Tyco Electronics, The
University of New Hampshire InterOperability Laboratory (UNH-IOL), and
Xilinx.
   Unlike past alliances that support single IEEE 802 Ethernet
projects, the Ethernet Alliance will exist for as long as it remains
relevant to IEEE 802 Ethernet technology and it will support IEEE 802
Ethernet projects:

   --  By speeding acceptance and time-to-market for new Ethernet
        markets and technologies;

   --  By cultivating efforts to define and develop new Ethernet
        technologies;

   --  And by educating Ethernet users on their choices and
        implementations for various applications.

   Moreover, the Ethernet Alliance removes the barrier of start-up
and organizational issues that surround individually dedicated
efforts, saving both time and money.
   "The Ethernet Alliance welcomes PowerDsine as a member. With
PowerDsine's expertise in PoE, we believe that the organization will
be able to increase awareness and the adoption of Ethernet in
power-needy applications, such as industrial networking, automation,
security and surveillance devices," said Brad Booth, president of the
Ethernet Alliance.
   "As Power over Ethernet technology becomes more widespread and the
802.3at standard continues to take shape, the Ethernet Alliance is a
great vehicle which can be utilized to communicate to the industry and
expand the total addressable market for PoE products," said Igal
Rotem, CEO of PowerDsine.

   About PowerDsine

   PowerDsine Ltd. (NASDAQ:PDSN) designs, develops and supplies
integrated circuits, modules and systems that enable the
implementation of Power over Ethernet in local area networks,
providing the capability to deliver and manage electrical power over
data network cables. PowerDsine offers integrated products and system
solutions to communications equipment manufacturers in the telecom and
datacom industries who incorporate them into, or bundle them with
their products. PowerDsine is a founding, contributing and active
member of the IEEE 802.3af and 802.3at Task Forces, and a principal
member of the Ethernet Alliance. For more information, please visit
http://www.powerdsine.com.
   PowerDsine is a registered trademark of PowerDsine Ltd.

   About the Ethernet Alliance

   The Ethernet Alliance was created to promote industry awareness,
acceptance and advancement of technology and products based on
existing and emerging IEEE 802 Ethernet standards. The organization
accelerates industry adoption and removes barriers to market entry by
providing a cohesive, market responsive, industry voice on IEEE 802
Ethernet projects. For more information, visit
www.ethernetalliance.org.

   About Power-over-Ethernet Technology

   PoE is a technology for wired Ethernet, the most widely installed
local area network technology in use today. PoE allows the electrical
power necessary for the operation of each device, to be carried by
data cables rather than by separate power cords. It minimizes the
number of wires that must be used in order to install the network,
resulting in lower cost, less downtime, easier maintenance and greater
installation flexibility.