1. March 23, 2010 March 2010 1 QLOGIC CONFIDENTIAL QLogic Announces Industry First in the HPC Sector

3. It is embargoed until Tuesday, March 23, 2010 @ 8AM Eastern

4. This information is being provided to you in advance of the formal announcement with the understanding that you will honor the embargoMarch 2010 2 QLOGIC CONFIDENTIAL

6. 60 Vendors in HPC Ecosystem

7. Tier One OEM Design Wins for IB Switches & Adapters

8. Dell, HP, IBM & SGI all OEMing QLogic QDR IB HPC Technologies

9. New IB Switches and Adapters offer Scalability on a whole different plane than comparative offerings

10. Quad Data Rate HCAs and Switches available wwQLogic Offers a Comprehensive HPC Portfolio 12000 Series Switches 9000 Series Switches 7000 Series Adapters QLogic Confidential

12. Application messaging patterns

13. Fabric virtualization

14. Fabric routing

15. Scalable communication libraries

16. Fabric & Element management

17. Installation services

18. Integrated with multiple file systems

19. Performance optimized with over 50 applications

20. NetTrack Development Center

21. Scalable high bandwidth

22. Low latency under load

23. Power Optimization

24. Modular & scalable to 864 ports

25. Message rates > 30 M/s

26. Signal integrity

27. Advanced feature set

28. Fabric routingQLogic Confidential

30. Defense

31. Space Exploration

32. Weather

33. Life Sciences

34. Electronic Design Automation

35. Computer Aided Engineering

36. Automotive Design and Simulation

38. Computational Fluid DynamicsQLogic Confidential

40. New QLogic 12005-PT16 QDR Pass-Through Module available for Dell PowerEdge blade servers

41. Designed to fit seamlessly into the Dell PowerEdge M1000e chassis

42. Provides dedicated 40Gb/sec QDR IB interface for Dell blade servers

43. Extends connectivity from the server’s IB mezzcard to any external, industry-standard IB switch

44. QLogic raises the stakes in the HPC sector The News March 2010 QLOGIC CONFIDENTIAL 6

46. This limits customer configuration options;a major client complaint

47. Q’s single slot solution has no limitations and 45% power savings

48. Q’s 12005-PT16 is a cost-effective alternative for cluster computing

49. Eliminates latency associated with internal switch hops

50. Connects blade servers directly to external QDR core switches

51. By taking up only a single I/O fabric module space in Dell servers, the 12005-PT16 frees other PowerEdge I/O modules for expanded configuration optionsWhy This is Important March 2010 QLOGIC CONFIDENTIAL 7

52. Two New IB solutions that will Enable QLogic and Dell to grow PowerEdge M1000e IB Business March 2010 QLOGIC CONFIDENTIAL 8 Available this Month: QLogic 12005-PT16: InfiniBand QDR Blade Pass-Through Module QME7342: Dual Port 40Gbps QDR IB to PCIe Expansion Card

54. Implement IB-based clusters with a cost-effective, high-performance connectivity solution

55. Run HPCC applications that demand high message rates and low latencies

56. Experience performance that scales with the node count

57. Obtain power savings and enjoy added flexibility while implementing clustersQLogic Confidential March 8, 2010

58. Product Detail: Dell PowerEdge M1000E March 8, 2010 Mellanox can use only port C, QLogic can use fabric ports B or C More Flexibility, Performance and Power Savings for Customers 10 QLogic Confidential

60. Single height IO module

61. 16 external QSFP ports direct connected to mezz

62. 16 backplane ports

63. One-to-one port mapping

64. Low latency (400 ps)

65. Hot Swappable

66. RoHS 6 compliantMarch 8, 2010

68. Pass-Thru removes one switch hop in large clusters

69. Pass-Thru occupies only 1 slot in blade chassis vs. 2 slots by Mellanox12

70. Product Detail: QLogic 7300 Series QDR IB Adapters March 8, 2010

71. QLogic QDR Adapter Advantage Grows with Scale for Real-World Applications QLogic Confidential

73. QLogic Switches and Directors Join Host Channel Adapters for End-to-End 40Gb/sec Connectivity That Provides Customers with Faster Time-to-Results

74. Now HPC customers can integrate complete end-to-end, 40Gb/sec InfiniBand networks with Dell PowerEdge™ servers and Precision workstations to achieve faster scientific research discoveriesQLogic Confidential

76. Dell is expanding its IB portfolio to encompass a greater selection of the latest QLogic QDR IB Solutions

77. QLogic is in a position to increase market share with Dell customers using PowerEdge M1000e servers

78. QLogic QDR cards are the only adapters in the industry that scale performance as the cluster scales

79. Dell customers can now build clusters using the industry’s highest-performing solution while saving power and costsKey Takeaways March 2010 QLOGIC CONFIDENTIAL 16

80. March 2010 17 QLOGIC CONFIDENTIAL