Plus you’ll need a larger 2.5-inch HDD or 2.5-inch SSD. To upgrade the existing 2.5-inch HDD to a larger capacity HDD or high performance SSD, purchase the same tools as for the RAM upgrade above, and follow this guide.
By default, this model is configured with a 750GB/1TB 2.5-inch hard drive connected to 6.0Gb/s SATA port.Then follow this guide to install the RAM. All the tools you'll need are in the Essential Electronics Toolkit and an Medium Anti-static mat is also recommended.