Trans Intl. offers this 16GB PC3-12800 DDR3-1600 SO-DIMM 204-Pin Dual Channel Notebook Memory Kit, with two 8GB SO-DIMMs, for $79 plus $8 for shipping. That's $9 under our mention from last week and the lowest total price we could find for a RAM kit with these specifications by $8. It's compatible with the MacBook Pro, but not the latest MacBook Pro with Retina display.