4GB STICK For HP-Compaq Pavilion Series 15-b198ed Sleekbook 15-e000ee 15-e000se 15-e002ee 15-e002se 15-e008ee 15-e008se 15-e009ee 15-e009se 15-e010us 15-e011nr 15-e012nr 15-e013nr 15-e014nr 15-e015nr 15-e016nr 15-e016wm 15-e018nr 15-e020ca 15-e020nr 15-e020us 15-e021nr 15-e027ca 15-e027cl 15-e028us 15-e033ca 15-e040ca 15-e041ca 15-e043cl 15-e049ca 15-e051ee 15-e051se 15-e053ca 15-e054ee. SO-DIMM DDR3 NON-ECC PC3-12800 1600MHz RAM Memory. Genuine A-Tech Brand. 4GB STICK SO-DIMM DDR3 NON-ECC PC3-12800 1600MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq Pavilion Series. (See Compatibility List Below)