Corsair XMS 8GB (2 x 4GB) PC3-12800 DDR3 Desktop Memory for $47.99 shipped after promo code DM15JN11US and this $20 rebate.  Here is a screenshot before the $20 rebate for your reference. For the technically inclined, this RAM operates at up to 1600MHz with SPD latency 9-9-9-24 at 1.65v and features XMS heat spreader. [...]