This ram is a great deal when you compare the price to other 1600Mhz brand offerings. I got this kit because it was listed as a certified 1600Mhz module for the Gigabyte GA-Z68MA-D2H-B3 motherboard.
However, I must note that this memory does not run at 1600Mhz by default. The default SPD timings for this memory put it at 1333Mhz. In order to get the memory to work at at 1600Mhz you need to go into your BIOS settings and look for the XMP (Extreme Memory Profile) settings. This RAM is XMP compliant but the packaging doesn't really mention this. XPG (Extreme Performance Gear) is just a marketing acronym from ADATA. These RAM chips send the BIOS XMP Profile 1 settings via SPD (Serial Presence Detect). When you find the XMP settings in your BIOS it will list Profile 1 (Enthusiast) and/or Profile 2 (Extreme) settings depending on the RAM chips in the board. These ADATA chips only send Profile 1 settings. When you set your BIOS to use the XMP Profile 1 settings the ADATA RAM tells your BIOS the correct memory timings for 1600Mhz without you having to adjust the timings manually. I would not call this overclocking. If you get the RAM to 1866Mhz then you are overclocking ;)
Note: Some BIOS' will allow you to see the changes instantly but you must realize that certain motherboard and other utilities may still say the RAM is at 1333Mhz because those utilities are note seeing the XMP profile settings.
Don't forget to register your RAM at [...] to get your lifetime warranty.
XMP = [...]
ADATA = [...]
Gigabyte = [...]
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