Okay, so you know how when you save something on your computer, it gets stored on a little part inside called a hard drive? Well, a board solid-state drive (or board SSD for short) is just another type of storage like a hard drive, but it's way faster and easier to use.
See, most hard drives have a lot of moving parts that spin around really fast to read and write information. But board SSDs don't have any moving parts at all! Instead, they use special computer chips called flash memory to hold all your important files and programs.
Flash memory is really cool because it works a lot like a toy called a Lego brick. Each brick can hold one piece of information, and they all snap together to make bigger and bigger pieces. So when you save something on a board SSD, it's like you're snapping one Lego brick after another until you've made a whole tower of bricks with all your stuff inside.
And because there aren't any moving parts, board SSDs can work way faster than hard drives. It's like if you had to build a castle out of Legos, but instead of using your hands to snap each brick together, you had a machine that could do it in just a few seconds. That's how much faster board SSDs are at storing and retrieving information!
So if you ever hear someone talking about a board SSD, just remember that it's like a super-fast and easy way to store all your computer stuff using Lego bricks that snap together really quickly.