Gateway 300 Series Desktop Memory Upgrade Configurator - choose your Model:

300 SE (DDR)
300 SE (SDRAM)
300L (P3/Cel i815 SDRAM)
300L (P4/Cel i845 SDRAM)
300L (P4/Cel i845G DDR)
300L Special (P3/Cel i815 SDRAM)
300S (DDR 266)
300S (DDR333)
300S (i810/i815 SDRAM)
300S (i845 SDRAM)
300S +
310S (DDR333)
310X (DDR333)
310XL (DDR333)
354
SB 310-C Pro