The Intel Core i5-8400 CPU is a powerful processor from Intel's 8th generation Core i5 series. It features a LGA 1151 socket type, 6 cores, and a 9 MB L3 cache, providing fast and efficient performance for a range of computing tasks. With a clock speed of 1.70 GHz and a bus speed of 8 GT/s, this CPU offers reliable performance and is suitable for various applications, making it a great choice for those looking to upgrade their computer's processing power.