1GB STICK For Toshiba Toshiba Satellite A205-S4639 A205-S4707 A205-S4777 A205-S4787 A205-S4797 A205-S5000 A205-S5800 A205-S5801 A205-S5803 A205-S5804 A205-S5805 A205-S5806 A205-S5809 A205-S5810 A205-S5811 A205-S5812 A205-S5813 A205-S5814 A205-S5816 A205-S5819 A205-S5820 A205-S5821 A205-S5823 A205-S5825 A205-S5831 A205-S5833 A205-S5835 A205-S5841 A205-S5843 A205-S5847 A205-S5851 A205-S5852. 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 Toshiba Toshiba Satellite. (See Compatibility List Below)