Do 10G Network Adapters Require Two PCI Lanes to Pass 10Gbit?

Abstract: Explore the relationship between 10G network adapters, PCI lanes, and data transfer rates. This SEO-optimized article discusses Intel X520/X540-MT and Mellanox MNPA198 models, with their PCIe 2.0 and 3.0 configurations.

Created: 2025-03-11 by UserComp.com Editors

Intel X520-540 Mellanox MNPA198 and Intel X550-4 Line PCIe

Overview

This article discusses the Intel X520-540 Mellanox MNPA198 and Intel X550-4 Line PCIe, their data transfer rates, and some key differences.

Intel X520-540 Mellanox MNPA198

The Intel X520-540 Mellanox MNPA198 is a PCIe 2.0 adapter that supports 4GB/s data transfer rate per line, with 500MB/s per line. Since it has 4 lines, the total data transfer rate is 4GB/s.

Intel X550-4 Line PCIe

The Intel X550-4 Line PCIe is a PCIe 3.0 adapter that also supports 4GB/s data transfer rate per line, with 1GB/s per line. As it also has 4 lines, the total data transfer rate is 4GB/s.

Differences

Both adapters support the same data transfer rate per line (4GB/s), but the Intel X550-4 Line PCIe is a PCIe 3.0 adapter, while the Intel X520-540 Mellanox MNPA198 is a PCIe 2.0 adapter.

References

Tags: networking hardware 10GbE PCIe tech support

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