Apple MacBook Pro A1278 13.3" Laptop (Intel Core 2 Duo 2.4Ghz, 250GB Hard Drive, 4096Mb RAM, DVDRW Drive, OS X 10.5.5) | Amazon price tracker / tracking, Amazon price history charts, Amazon
A1297, A1286, A1278 Apple MacBook Pro Unibody Ram Memory 10600 DDR3 4GB 8GB 16GB | eBay
8GB 2X4GB Memory RAM for Apple MacBook Pro A1278 (13.3" Core 2 Duo 2.4GHz) 204pin 1066MHz PC3-8500 DDR3 SO-DIMM Black Diamond Memory Module Upgrade - Walmart.com
MacBook Unibody Model A1278 RAM Replacement - iFixit Repair Guide
MacBook Pro: How to remove or install memory - Apple Support