256MB IBM NetFinity 5000/5500 PC100 ECC DIMM This module may be manufactured by Hitachi, IBM, Kingston, Samsung, Micron, or MemoryTen depending on availability. This item is in stock and can ship today. We guaranty this module will work in your system. 256MB 168pin PC100 registered ECC 3.3V SDRAM DIMM. The 01K7391 carries a MemoryTen lifetime exchange or repair warranty against manufacturing defects. It may also be returned in original condition within 14 days of delivery for full credit minus shipping. We also supply unlimited lifetime tech support for this item.