Original Acer 5517 5920 5315 1GB DDR2 667 SO-DIMM Laptop Memory Original  part  -- not a cheap replacement ===      Works great.  1 single stick Bid with confidence -- Actual item   We do our best to describe items as accurately as possible, but mistakes happen. If you receive this item and feel it's not as described, please contact use first to resolve. We are customer friendly and your satisfaction is our priority.