[] [[LETTERHEAD OF MAPLES AND CALDER] O 2 Micro International Limited Grand Pavilion Commercial Centre West Bay Road P.O. Box 32331 Grand Cayman KY1-1209 Cayman Islands 11 September 2008 Dear Sirs, Company Registration Statement Shares We have examined the Registration Statement on Form S-8 to be filed by O2 Micro International Limited, a Cayman Islands company (the “ It is our] [[LETTERHEAD OF DELOITTE & TOUCHE] CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in this Registration Statement on Form S-8 of our reports relating to the financial statements of O 2 Micro International Limited and the effectiveness of O 2 Micro International Limited’s internal control over financial reporting dated April 14, 2008, appearing in]

[EXPLANATORY NOTE The 20,000,000 Ordinary Shares of O 2 Registration Statementmmission Prior Registration Statement Micro International Limited, ayman Islandsrporation (the PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT Item3.orporation of Documents by Reference. Exchange Act 2 Any statementntained in a documentorporated by reference herein shall be deemed to be modified or superseded for purposes of] [FACE="Times New Roman" SIZE="2">[LETTERHEAD OF MAPLES ANDLDER] O 2 Micro International Limited Grand Pavilionmmercial Centre West Bay Road P.O. Box 32331 Grandyman1-1209yman Islands 11September 2008 Dear Sirs,mpany Registration Statement Shares We have examined the Registration Statement on Form S-8 to be filed by O2 Micro International Limited, ayman Islandsmpany (the] [[LETTERHEAD OF DELOITTE& TOUCHE] FACE="Times New Roman" SIZE="2">NSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Wensent to theorporation by reference in this Registration Statement on Form S-8 of our reports relating to the financial statements of O 2 Micro International Limited and the effectiveness of O 2 Micro International Limiteds internalntrol over financial reportingted April14, 2008,]