 Hello, this is Laptop Media, and today, we will show you how to open the Dynabook Tecra A40J and what's inside of it. This laptop's bottom panel is held in place by 9 Philips head screws. After you undo them, you have to 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. Inside, you will find a 53 watt hours battery. It lasted us for 10 hours of web browsing, or 7 hours of video playback. If you want to take the battery out, you will need to undo 4 Philips head screws. Then, unplug the connector from the motherboard, and remove the unit from the device. It's good to see there are 2 Sodom slots for memory expansion. Additionally, there is 1 M2 PCI-EX4 slot for storage. As for the cooling, there are 2 heat pipes connected to a rather long heat sink. Then, 2 fans blow the heat away from the device. 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.