PCIeväylään

PCIeväylän is a Finnish term that may refer to the PCI Express bus (PCIe) or the data channel of that interface within a computer system. In Finnish technical literature, PCIe is typically described as PCI Express väylä or PCIe väylä, and the possessive form PCIeväylän can appear in phrases describing a particular PCIe bus segment or design, such as PCIeväylän suunnittelu or PCIeväylän rakenne. The term is not a standard name in English-language documentation, but it can appear in Finnish sources where PCIe is discussed.

PCI Express is a high-speed serial interconnection standard used to attach peripherals to a motherboard. It replaces older parallel PCI by using point-to-point connections called lanes. A device can use a single lane (x1) or multiple lanes (x4, x8, x16, etc.), and lanes are aggregated to increase overall bandwidth. Each lane carries data in two differential directions, enabling high throughput with scalable configurations. Generational speeds include Gen1 (2.5 GT/s per lane), Gen2 (5 GT/s), Gen3 (8 GT/s), Gen4 (16 GT/s), and Gen5 (32 GT/s), with ongoing developments in newer generations. PCIe supports features such as hot-plug capability, power management, and the use of PCIe switches to create complex topologies. It is widely used for graphics cards, solid-state drives (including NVMe), network adapters, and other expansion devices.

In Finnish contexts, PCIeväylän is typically understood as referring to the PCIe bus in hardware discussions. The concept remains central to modern computer design, influencing performance, expansion options, and system scalability.