512MB DDR2-533 SODIMM.

Compatible with Acer AcerAspire 1640, 1641WLMi, 1642WLMi, 1644WLCI NOTEBOOK, 1644WLMi, 1650, 1650Z, 1651WLMi, 1652LMi, 1652WLMi, 1654WLMI NOTEBOOK, 1690 Notebook (DDR2), 1690LCI NOTEBOOK, 1692WLMi, 3600, 3603WXMI (DDR2-533MHz) NOTEBOOK, 3608WXCI NOTEBOOK, 3610, 3613LCi, 3613LMi, 3613WLCi, 3613WLMI NOTEBOOK, 3614WLMi, 3620, 3623WXMI NOTEBOOK, 3627 WXMi Notebook, 5500, 5502WXCI NOTEBOOK, 5503WXMI NOTEBOOK, 5504WXMi, 5510, 5512WLMI NOTEBOOK, 5513EWLM, 5514WLM NOTEBOOK, 5514WLMi, 5560 (DDR2-533MHz), 5610 (DDR2-533MHz), 5672WLMI(DDR2-533) NOTEBOOK, 9500, 9502WLMI NOTEBOOK, 9502WSMi, 9503EWSMi, 9504WLMI NOTEBOOK, 9504WSMi, Extensa 2600 Series, TravelMate 1691WLCi, 2400, 2403WXCi, 2403WXMi, 2410, 2412LC, 2412LCI, 2413LC, 2413LCi, 2413LM, 2413LMi, 2413NLC, 2413NLM, 2413NLMi, 2413NWLCI, 2413NWLMI, 2413WLC, 2413WLMi, 2414LMI, 2414WLMi, 2420, 3000, 3002WTCi, 3002WTMi, 3004WTMI, 3010(DDR2-533MHz), 3012WTMi (DDR2-533MHz), 3210, 3210WXMi, 3211WXMi, 3212NWXCI, 3212WXCI, 3212WXMi, 3220, 3222WXMi, 3224WXMI, 3230 SERIES, 3300, 3613WLCi, 4020 SERIES, 4020NWLCI, 4021LMi, 4021NWLCI, 4021WLCi, 4021WLMi, 4060, 4061LMI, 4061WLMI, 4062LMI, 4062NWLMi, 4062WLCi, 4062WLMi, 4064WLMi, 4150, 4150LMI, 4150NLCI, 4151, 4151LCi, 4151LMi, 4152LCi, 4152LMi, 4154LMi, 4200 (DDR2-533MHz), 4202WLMi, 4650, 4650LCi, 4651, 4651LCI, 4651LMi, 4652, 4652LCI, 4654, 4670 (DDR2-533MHz), 4672LMi (DDR2-533MHz), 8102WLMi, 8103, 8103WLMi-XPP, 8103WLMIB, 8104, 8106WLMI, 8200 (DDR2-533MHz), 8204WLMi (DDR2-533MHz), C200, C310, C312XCi, C314XMi.