Solana is a high-performance blockchain designed for fast and scalable decentralized applications (dApps). It uses a unique consensus mechanism called **Proof of History (PoH)** combined with **Proof of Stake (PoS)** to achieve high throughput and low transaction fees. Solana is known for its ability to process thousands of transactions per second (TPS), making it one of the fastest blockchains in the crypto space. It supports smart contracts and is widely used for DeFi, NFTs, and other Web3 applications.