70062901 256MB Oki B411d/B411dn/B431d/B431dn Digital Mono Printer 70062901 256MB Oki B411d/B411dn/B431d/B431dn Digital Mono Printer 256MB PRINTER UPGRADE This module may be manufactured by Micron, Samsung, Hynix or Gigaram. This module is in stock and can ship today. 100% Compatible Lifetime Warranty