Static Random Access Memory (SRAM) is a type of semiconductor memory known for its high speed and reliability. Unlike Dynamic Random Access Memory (DRAM), SRAM does not require periodic refreshing to maintain data, making it faster and more stable.

SRAM stores data using flip-flop circuits composed of six transistors, which allows it to retain data as long as power is supplied.

This design contributes to its speed and low latency, making it ideal for high-performance applications like CPU caches.

However, SRAM is more expensive and has a lower storage density compared to DRAM, which limits its use to smaller, high-speed applications. It's commonly used in CPU caches, buffers, and registers where quick access to data is critical.