Besides the fact that the two bars are very appealing visually (well-made metal housing) managed the installation easy. I had until now 2 x 2GB built with me and wanted to expand it. Since I have four RAM slots on my motherboard, I have the new bolt simply plugged into the first two slots and the old in the next two, so I now 2 x 4GB and 2 x 2GB each can be used in dual channel mode and so a total of 4 was able to increase to 12GB. I do not even have to adjust something in the BIOS; the first system boot after installing me were immediately attested by various programs 12GB RAM. So far everything is going smoothly and the delivery was accustomed quickly, so there's 5 star. Top product, also in terms of price / performance!