When selecting industrial computers, we often encounter PCI and PCI-e expansion slots, what are the differences between the two?
1. The color is different. In IPC motherboards, the PCI slot is milky white, while the PCI-e slot is black.
2. The transmission rate is different. PCI slots have maximum data transfer rates of 133MB/sec (32-bit) and 266MB/sec (64-bit), while PCI-e slots can now reach up to more than 10GB/s.
3. The standards are different. There is only one standard for PCI slots, while PCI-e slots come in seven standards: X1 (250MB/s), X2, X4, X8, X12, X16, and X32 lanes.
4. The bus type is different. The PCI slot is an expansion slot based on the PCI part of the bus, with a bit width of 32 bits or 64 bits and an operating frequency of 33MHz. The PCI slot of the industrial computer can be connected to the graphics card, sound card, network card, built-in modem, built-in ADSL modem, USB2.0 card, IEEE1394 card, IDE interface card, RAID card, TV card, video capture card and other types of expansion cards. PCI slot is the primary expansion slot of the industrial computer, and after inserting different expansion cards, you can get almost all the functions that the industrial computer can complete, which is a veritable "universal" expansion slot.
PCI-e has 7 channel standards, which are very scalable to meet the different data transmission bandwidth requirements of different system devices. In addition, shorter PCI-e cards can be used in longer PCI-e slots. Because PCI-e is only the expansion bus of Nanqiao and has nothing to do with the operating system, it not only enables the PCI-e interface of the industrial computer to coexist with the PCI interface, but also brings convenience to the user's promotion.
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