www.siliconmotion.com Company Fact Sheet 3Q 2014

Quick Facts We are a fabless semiconductor company that designs, develops and markets high performance, low-power semiconductor solutions to OEMs and other customers in the Founded 1995 mobile storage and mobile communications markets. For the mobile storage market, our IPO 2005 key products are microcontrollers used in solid state storage devices such as SSDs, eMMCs and other embedded flash applications, as well as in removable storage products NasdaqGS SIMO such as memory cards and USB flash drives. More NAND flash products, especially next Revenue US$225 million (2013) generation flash, whether produced by Samsung, SanDisk, , Micron or SK Hynix Employees 731 (2013 year-end) are supported by Silicon Motion controllers than any other company. We are the leading merchant supplier of controllers for eMMC embedded memory used in smartphones and tablets and are increasingly focused on client SSD controllers for PCs and other applications. For the mobile communications market, our key products are handset Revenue Mix (3Q 2014) transceivers and mobile TV SoCs. We are the dedicated provider of 4G LTE transceivers for Samsung’s smartphones and tablets. We market our Mobile Storage products under the “SMI” brand and Mobile Communications products under the “FCI” brand.

Mobile Storage

Our Embedded Storage products include eMMC controllers for % 83 embedded memory in smartphones and tablets, client SSD Mobile Storage Mobile controllers for PCs and Ultrabooks, controllers for industrial and Communications 15% commercial embedded memory applications, and FerriSSD single-chip storage solutions targeting high performance, 2% industrial-grade applications. In 2013, Embedded Storage became Others our largest product line Market leader for and USB flash drive controllers, including high performance UHS-II SD card controller and USB 3.0 US$ 87 million flash drive controllers Value-added partner to NAND flash makers for supporting the commercialization of their most advanced memory products with our best-in-class controllers

Mobile Communications Dedicated supplier of 4G LTE transceivers to Samsung for its 4G LTE smartphones and tablets Investor Contacts Leading SoC and RF IC supplier to OEMs focused on global markets for digital mobile TV received on smartphones and in-car Jason Tsai telematics Director of IR and Strategy E-mail: [email protected] Selina Hsieh Others Investor Relations Leader in embedded graphics processors for industrial and E-mail: [email protected] commercial applications, such as office automation systems, point-of-sale terminals, and thin client computing devices Company Fact Sheet 3Q 2014 www.siliconmotion.com

Revenue US$m Analyst Coverage 90 87 80 Firm Analyst 69 70 B.Riley & Co., LLC Mike Crawford 57 60 52 53 50 Bank of America Merrill Lynch Simon Dong-je Woo 40 Brean Capital, LLC Mike Burton 30 20 Craig-Hallum Capital Group LLC Anthony J. Stoss 10 0 Ladenburg Thalmann & Co Inc. Daniel L. Amir 3Q13 4Q13 1Q14 2Q14 3Q14 Lake Street Capital Markets, LLC Jaeson Schmidt

Needham & Company, LLC Rajvindra S. Gill Earnings per ADS* Northland Securities, Inc. Tom Sepenzis US$ 0.60 0.57 Pacific Crest Securities Monika Garg

0.50 Topeka Capital Markets Suji De Silva 0.41 0.40 0.32 0.30 0.30

0.20 0.16 0.10

0.00 3Q13 4Q13 1Q14 2Q14 3Q14 Silicon Motion Technology Corp. 8F-1, No.36, Taiyuan St., Jhubei City Margins Gross Margin* Hsinchu County 30265, Taiwan % of Revenue Operating Margin* Tel: +886 3 552 6888 60% Fax:+886 3 560 0336 50% 50% 40% www.siliconmotion.com 30% 30% 20% 10% 0% 3Q13 4Q13 1Q14 2Q14 3Q14 Safe Harbor Statement This fact sheet contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as Cash Balance amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements US$m include, without limitation, statements regarding trends in the 180 163 162 161 165 multimedia consumer electronics market, our potential 160 159 growth in new markets and our future results of operations, 140 financial condition and business prospects. Although such 120 100 statements are based on our own information and 80 information from other sources we believe to be reliable, you 60 should not place undue reliance on them. These statements 40 involve risks and uncertainties, and actual market trends or 20 our actual results of operations, financial condition or 0 business prospects may differ materially from those 3Q13 4Q13 1Q11 2Q14 3Q14 expressed or implied in these forward looking statements for *Non-GAAP a variety of reasons.