Maximum RAM would be 16GB ( 4 x 4GB) of DDR3, such as Crucial PC3-12800, 1600 MHz, NON-ECC, UDIMM, 240-pin RAM. Please be advised that the maximum RAM speed would be 1333 MHz, such as this RAM: Hynix HMT351U6CFR8C-H9 4GB Desktop DIMM DDR3 PC10600 (133...
The memory that you show is for a desktop. The G20 uses 2 x 204-Pin DDR3L SO-DIMM 1600 (PC3 12800) laptop memory, and need to be DDR3L low voltage, 1.35V. If you look at these photos, you can see it. http://rog.asus.com/forum/attachment.php?attachmentid=43914&d=1417924705...