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MZ620 NIC V100R001 User Guide 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).


The MZ620 is an InfiniBand (IB) host channel adapter (HCA). It provides two 100G IB Enhanced Data Rate (EDR) ports for E9000 compute nodes to connect to switch modules in the chassis.

The MZ620 uses the Mellanox ConnectX-4 (CX4) chip and supports HCA applications. The 100G ports support 100G/56G/40G auto-negotiation and support 100G (EDR), 56G (FDR), and 40G (QDR) port applications (FDR stands for Fourteen Data Rate; QDR stands for Quad Data Rate). The MZ620 supports the Remote Direct Memory Access (RDMA) feature to address low-latency network applications.

Updated: 2019-09-02

Document ID: EDOC1000172487

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