#techengineering

PCIe (Peripheral Component Interconnect Express) slots on a motherboard are high-speed expansion slots used to connect additional hardware components like graphics cards (GPU), Wi-Fi cards, sound cards, SSD adapters, and capture cards; these slots come in different sizes such as x1, x4, x8, and x16, where larger slots provide more data bandwidth for high-performance devices—modern PCs rely on PCIe slots for faster communication between the motherboard and connected hardware, improving gaming, processing, storage speed, and overall system performance; choosing the right PCIe slot is important because it affects compatibility, speed, airflow, and upgrade flexibility in a computer system.