MoSys Acquires MagnaLynx Inc.

Acquisition Expands MoSys’ SerDes Technology and Team

SUNNYVALE, Calif.-- March 26, 2010 --MoSys, Inc., a leading provider of differentiated, high-density memory and high-speed interface (I/O) intellectual property (IP), today announced that it has acquired MagnaLynx Inc. a developer of high-speed, low-power serial chip-to-chip communications technology.

The acquisition is expected to result in the following benefits to MoSys:

• Adds innovative low-power SerDes IP, technology and expertise to the expanding MoSys family of product offerings.
• Expands MoSys’ serial chip-to-chip communications technology and expertise
• Strengthens MoSys’ SerDes capabilities by adding another very experienced, high caliber analog and mixed-signal development team

Founded in Ames, Iowa in 2003, MagnaLynx specializes in high-performance, low-power SerDes design services and IP cores for network communications and high performance computing applications.

“Becoming the leader and a prime innovator in high-speed SerDes technology as applied to board level serial chip-to-chip communications is a critical part of our growth strategy, for both our IP business and our recently announced Bandwidth Engine™ family of ICs. In June last year, we acquired Prism Circuits, and today I am pleased to announce the addition of the MagnaLynx team to the expanding MoSys family,” said Len Perham, MoSys’ president and CEO. “In addition to expanding our overall SerDes engineering team, MagnaLynx brings us unique expertise and technology in low-power techniques for high-speed SerDes and considerable experience in enabling serial chip-to-chip communications.”

Scott Irwin, MagnaLynx founder and chairman said, “We started MagnaLynx with the vision of bringing revolutionary, high-speed, low-power serial chip-to-chip communications capability to the market. By joining forces with MoSys, it will dramatically accelerate our ability to achieve that vision. The team and I are very excited to join MoSys and look forward to contributing both to the MoSys’ IP business and the Bandwidth Engine IC products.”

The total purchase price is expected to be approximately $5.0 million, including a milestone-based earn-out payment in 2011.

About MoSys, Inc.

MoSys, Inc. (NASDAQ: MOSY - News) develops serial chip-to-chip communications solutions that deliver unparalleled bandwidth performance for next generation networking systems and advanced system-on-chip (SoC) designs. MoSys’ IP portfolio includes DDR3 PHYs and SerDes IP that support data rates from 1 - 11 Gigabits per second (Gbps) across a variety of standards. In addition, MoSys offers its flagship, patented 1T-SRAM® and 1T-Flash® memory cores, which offer a combination of high-density, low power consumption, high speed and low cost advantages for high-performance networking, computing, storage and consumer/graphics applications. MoSys IP is production-proven in more than 225 million devices. MoSys is headquartered in Sunnyvale, California. More information is available on MoSys' website at www.mosys.com.

About MagnaLynx Inc.

MagnaLynx Inc., headquartered in Ames, Iowa, was formed in 2003 to develop leading edge high-speed serial interface technology focused on chip-to-chip applications.