1GB STICK For Acer Travelmate Series 4201 4202LMi 4203 4204WLMi 4220 Series (AMD) 4220 Series (Intel) 4222 4222LMi 4230 Series 4230-6499 4230-6704 4230-6909 4233 4233NWLMi 4233WLMi 4233WLMi (LX.TH906.023) 4233WLMi (LX.THK0X.140) 4234 4234WLMi 4262WLMi 4280 Series 4280_3G 4282WLMi 4283 4283WLMi 4284WLMi 4285WLMi 4310 Series 4314 4320 Series 4320-101G12Mi 4320-2451 4330 4335 4520 Series. SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 1GB STICK SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Acer Travelmate Series. (See Compatibility List Below)