Motherboards with PCI-E 4.0 support
prices on 422 modelsPCI Express 4.0
— PCI-Express v4.0 bus support.Recall that PCI-E slots are standardly used to connect graphics cards and other expansion cards; in addition, PCI-E mode is used in other interfaces (for example, Thunderbolt for external peripherals and M.2 for internal SSDs). Version 4.0 was introduced in 2017 and implemented in some devices only in 2019. It delivers twice the data transfer rate of the previous PCI-E 3.0 at 1969 Mbps per PCI-E lane (which is 31.5 GBps for PCI-E 16x of this version). At the same time, motherboards of earlier versions can also be connected to PCI Express 4.0 slots, except that the speed of operation will be limited by their capabilities.
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