Crucial Ballistix Sport 16GB (2 x 8GB) 240-Pin DDR3 Desktop Memory for $124.99 shipped. Here is a screenshot for your reference. Its timing is 9-9-9-4 at DDR3 1600 speed. It can also run at both 1.5v and 1.35v, which would work in most desktop systems. In addition, it has a low profile to fit in a tight space. It normally goes for about $173.