4GB STICK For Toshiba Toshiba Satellite C855D-S5203 C855D-S5205 C855D-S5228 C855D-S5229 C855D-S5230 C855D-S5232 C855D-S5235 C855D-S5237 C855D-S5238 C855D-S5302 C855D-S5303 C855D-S5315 C855D-S5320 C855D-S5339 C855D-S5340 C855D-S5344 C855D-SP5265FM C855D-STN02 C855-S5118 C855-S5206 C855-S5214 C855-S5231 C855-S5233 C855-S5234 C855-S5236 C855-S5239 C855-S5239P C855-S5241 C855-S5245 C855-S5247. 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 Toshiba Satellite. (See Compatibility List Below)