4GB STICK For Toshiba Toshiba Satellite L755-S5154 L755-S5156 L755-S5161 L755-S5166 L755-S5167 L755-S5168 L755-S5169 L755-S5170 L755-S5173 L755-S5175 L755-S5213 L755-S5214 L755-S5216 L755-S5239 L755-S5242 L755-S5242BN L755-S5242GR L755-S5242RD L755-S5242WH L755-S5243 L755-S5244 L755-S5245 L755-S5246 L755-S5247 L755-S5248 L755-S5249 L755-S5252 L755-S5253 L755-S5254 L755-S5255 L755-S5256. 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)