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PCIe version 2 operates at a frequency of 5 GT/s (gigatransfers per second) per lane. This translates to a raw data transfer rate of approximately 500 MB/s per lane, effectively doubling the bandwidth compared to PCIe version 1. Additionally, PCIe 2.0 supports multiple lanes, allowing for greater overall throughput depending on the configuration, such as x1, x4, x8, or x16.

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