These bars have taken the place of memory modules having me LDLC rendering faithful service for almost 8 years; a small eternity in computer science. Unpacked, installed (within 5 minutes) and fully recognized by my motherboard (GYGABYTE) also no longer young. We bet that these bars are resistant at least 3 or 4 years, but given the lightness of manufacture can legitimately doubt ...
Anyway, now that is my "old" PC left through the bars at the quality / price was right but for how long?
In summary, if like me, you want to boost or troubleshoot an old pc without incident at a nice price please go ahead. But if you are looking for performance and / or quality manufacturing, invest more in the tenors of the genre (KINGSTON CORSAIR, SAMSUNG, etc).