Memory Module   DDR LONG-DIMM 184 PIN                 * Picture may vary without notice   SKU # Spec Brand Chip ICAE256-333328 256MB 333 Aeneon Original   ICAE512-333328 512MB 333 Aeneon Original   ICSI512-333328 512MB 333 Infineon/3rd           ICEL256-400328 256MB 400 Elixir Original   ICNA256-400328 256MB 400 Nanya Original NT256D64S88C0G-5T         ICEL512-400328 512MB 400 Elixir Original   ICSM512-400648 512MB 400 Samsung True Samsung chips ICKN512-400648 512MB 400 Kingston Orig. KVR400X64C3A/512M ICMI512-400648 512MB 400 Micron /3rd           ICMI1G-400648 1GB      400 Micron/3rd   ICSM1G-333ERL 1GB 333 ECC REGISTER Samsung Original M312L2920BGO-CB300