I am an electronics enthusiast from China. I want to take a look at the schematic diagram of my RTX 4090 graphics card, so I found this interesting website through searching. After downloading the schematic diagram I need, I hope to explore it carefully to see if there are other fun things to discover. I am an electronics engineer, and in my spare time, I like to tinker with small electronic gadgets. I used to always play with things developed by others, but now I plan to make something useful. If it can help others in their work and life, that would be even better.