IBM 2GB PC2-5300 DDR2-667 1Rx4 ECC Registered DIMM (IBM PN# 41Y2770)

41Y2770-PCW is an IBM Compatible 2GB PC2-5300 DDR2-667 1Rx4 ECC Registered RDIMM (IBM PN# 41Y2770). This is a ‘major brand’ module (from either Samsung, Micron, Hynix, Infineon, etc.), equivalent in every way to IBM original memory. All PCW modules meet or exceed OEM specifications and JEDEC standards.