The Ultimate Guide to PCI Express: Specs, Features, Use Cases and PCIe 7.0

PCI Express, commonly called PCIe, is the high-speed interconnect standard used to move data between key system components inside modern electronic systems. It connects processors, CPUs, GPUs, storage devices, accelerators and networking interfaces, enabling fast and efficient communication across servers, PCs, embedded platforms and cloud infrastructure. Over time, PCIe has become the industry’s default choice for high-bandwidth, low-latency I/O because it continues to scale performance while p