In this guide, I will explain how to upgrade RAM, SSD, hard drive on Asus G550JK
Asus G550J internal workmanship is very particularly, the motherboard covered by a lot of cooling stickers, optical drive is also covered by a sticker.
But the upgrade space is not too much, you can upgrade the RAM to 16GB, you can also remove the optical drive and add a second hard drive, but no mSTAT SSD slot.
RAM: come with two 4GB ram, up to 16GB.
RAM Type: DDR3L 1600MHz.
SSD: you can add a 2.5″ SSD (replace the original hard drive).
Second HDD: support, needs a 2nd HDD caddy.