Categorization：Product Information
The PCI-E (Peripheral Component Interconnect Express) bus is a high-speed, point-to-point serial bus standard for connecting peripheral devices in a computer system. It is the successor of the PCI bus, providing higher bandwidth and performance, and is widely used in modern computer and server systems. The functions, applications, features and electrical performance of the PCI-E bus are as follows: Functions: 1. High-speed data transmission: The PCI-E bus supports high-speed data transmission and has a high bandwidth, which can meet the requirements of devices and applications with high data transmission speed. 2. Point-to-point connection: PCI-E uses a point-to-point connection architecture, and each device is directly connected to the host through a separate channel, providing faster data transmission speed and lower latency. 3. Hot-plug support: The PCI-E bus supports hot-plug functionality, allowing devices to be inserted or removed while the system is running without restarting the system. 4. Bandwidth allocation: PCI-E bus allocates bandwidth to meet the needs of different devices. It can dynamically allocate bandwidth resources according to the requirements of devices and improve the overall performance of the system. Applications: 1. Graphics card: The PCI-E bus is widely used to connect graphics processing units (GPUs) for graphics rendering and high-performance computing. 2. Expansion card: PCI-E bus is used to connect various expansion cards, such as sound card, network card, raid card, video capture card, etc., to expand the function and performance of the computer system. 3. Storage devices: The PCI-E bus is also used to connect high-performance storage devices, such as solid-state drives (SSDs) and extended storage arrays, providing faster data transfer speeds. Features: 1. High bandwidth: PCI-E bus provides high-bandwidth data transmission, from hundreds of MB/s to tens of GB/s, which meets the needs of modern high-performance computing and data processing. 2. Low latency: Due to the point-to-point connection architecture, the PCI-E bus has lower latency, which can transmit data and respond to requests faster. 3. Scalability: The PCI-E bus has good scalability, can support multiple channels and multiple devices, and can be expanded through multiple slots to meet the needs of different application scenarios. 4. Energy-saving: PCI-E bus uses dynamic power management technology, which can adjust the power supply according to the needs of the equipment, and the energy-saving effect is remarkable. Electrical performance: 1. Voltage and power consumption: The voltage of PCI-E bus is usually 3.3 V or 12 V, and the power consumption varies in different versions according to the specification requirements. 2. Transfer rate: The transfer rate of the PCI-E bus varies depending on the version. The common versions are PCI-E 1.0, 2.0, 3.0, 4.0, and 5.0. The transfer rate of each version has been significantly improved. 3. Signal integrity: PCI-E bus uses differential signal transmission, which has good anti-interference and signal integrity, and can maintain the accuracy of data in high-speed environment. As a high-performance and reliable external device connection standard, PCI-E bus is widely used in the field of computers and servers, which provides important support for system scalability and performance. With the continuous development of technology, the bandwidth and speed of PCI-E bus will continue to improve to meet the needs of higher performance computing and data transmission in the future.
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