4GB STICK For Toshiba Satellite L Series L755D-SP5166FM L755D-SP5165RM L755-S5103 L755-S5107 L755-S5110 L755-S5112 L755-S5151 L755-S5153 L755-S5154. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. 4GB STICK SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Toshiba Satellite L Series. (See Compatibility List Below)