It'll work, but you really should buy a faster ram (1600 is the fastest that motherboard will take without over clocking). MB will come with a set of instructions which are downloadable at the ASUS site. There will be a list of compatible ram in those instructions. Make sure yours is on it.
The CPU that i will buy (Pentium G2020) only supports 1333MHz so even if i buy faster RAM the motherboard will underclock it to 1333MHz, so no point to buy faster RAM there, only if i decide to buy a new better CPU :x