 Hello, this is Laptop Media, and today, we will show you how to open the Dell Latitude 155,520 and what's inside of it. Accessing this laptop's internals is extremely easy. You just need to undo 8 captive Philips head screws, and then pry the bottom panel with a plastic tool. Please remember, it would be of great help to us if you just hit the like button and subscribe to our channel. That would motivate us to make even more and better videos for you. After you get inside, you will see the battery pack. Our unit has a 63 watt-hours capacity, while some configurations will include a smaller 42 watt-hours battery. In terms of memory, there are two Sodom slots, which support up to 64GB of dual-channel RAM in total. Storage-wise, you get 2 M.2 PCI-EX4 slots, with that one labeled with number 2 supporting PCI-E Gen4 drives. As for the cooling, there are two rather long heat pipes, connected to a side-mounted heat spreader. The tough job of getting the heat dissipated is done by the fan, which is not that big in diameter but has a pretty thick profile. If you'd like to see more disassembly videos of the latest notebooks we would highly appreciate if you hit the like button and subscribe to the channel.