Patriot Gamer 2 Series 8GB (2 x 4GB) PC3-10666 Desktop Memory for $20.99 shipped after submitting this $15 rebate.  Here is a screenshot for your reference.  It features 9-9-9-24 timing at 1.65V, extruded aluminum shield to provide improved cooling, XMP ready, and RoHS compliance.  Most places have it for about $37.