2GB STICK For Gateway SX Series SX2801-05 SX2801-05e SX2801-07e SX2801-11e SX2803-25e SX2803-53 SX2803-UB20P SX2803-US20P SX2840-01 SX2840-08M SX2840-H32D/L SX2841-09e SX2850-01 SX2850-33 SX2850-H32/L SX2850-N34D/L SX2850-N54/L SX2850-UB10P SX2851 SX2851-09e SX2851-41 SX2851-41e SX2855 SX2855-MO10B SX2855-UB10P SX2855-UB11P SX2855-UB12P SX2855-UB22P SX2855-UR10P SX2855-UR11P SX2855-UR20P. DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. 2GB STICK 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 Gateway SX Series. (See Compatibility List Below)