CompuStocx GmbH ("CSX") guaranties that all products are free of material or production errors. In accordance to our general warranty conditions, we exchange immediately all defective parts which cause technical errors and were not damaged due to unprofessional handling or wrong workmanship or altered inside the SPD (DRAM).
End users outside Germany need to apply for an exchange of defective CSX memory products at the point of purchase.

You receive in most cases brand new products as exchange for returned RMA parts.