I was a little concerned to read 1.7v in the specification, but took a chance and they are actually marked 1.5v, so no need to worry about voltages for the Intel processors. Installed on a Gigabyte GA-P55M-UD2 board with Intel i3 530 processor and runs perfectly.
The DHX fins are a bit OTT for me, maybe they are useful if you are planning to overclock your memory to within an inch of its life. In fact, be aware that in a micro case, the height of the fins may affect the use of your drive bays. In my build, it affected 3 of my 4 3.5" bays and I would have preferred not to have the fins at all - the reason why I have deducted a star.
The price fluctuates wildly. When Amazon has stock, I couldn't find 4GB of DD3 memory anywhere for less (<70). Marketplace vendors are asking considerably more.