$SOL Solana is a blockchain platform that focuses on "high speed and low transaction fees," suitable for developing decentralized applications (DApps), such as DeFi or NFT markets. Its features include the ability to process thousands of transactions per second, and the fees are very low. The use of SOL coins includes paying transaction fees, staking to earn rewards, or participating in network governance. In simple terms, SOL is like the "fuel" for this high-speed blockchain; if you want to do things on it, you need to use it. In the future, if Solana applications increase, the price of SOL coins may also rise accordingly.