Ricoh 256MB SDRAM-133, 256 Mo, Aficio Laser Printers SP C420DN, SDR SDRAM, 133 MHz, 144-pin SO-DIMM Ricoh 256MB SDRAM-133. Capacité: 256 Mo, Compatibilité: Aficio Laser Printers SP C420DN, Type de mémoire interne: SDR SDRAM