A-TECH 2GB STICK For HP Compaq Mini CQ10-402EZ CQ10-405DX CQ10-420LA CQ10-450CA CQ10-510CA CQ10-514CA CQ10-520ES CQ10-521LA CQ10-525DX. SO-DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory. Genuine Brand. 2GB STICK SO-DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP Compaq Mini. (See Compatibility List Below)