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Does QSFP28 support 10G?
Knowledge Base + 2024.01.10

No, QSFP28 (Quad Small Form-factor Pluggable 28) does not support 10G (10 gigabits per second). QSFP28 is mainly designed for 100G and 40G Ethernet applications. If you need 10G support, you would need to use a different type of transceiver, such as SFP+ (Small Form-factor Pluggable Plus) or 10G QSFP+.

While the QSFP28 standard itself is not designed for 10G, there are other form factors and modules, such as the SFP+ (Small Form-factor Pluggable Plus) or the QSFP+ (Quad Small Form-factor Pluggable Plus), that are more suitable for 10 Gigabit Ethernet (10GbE) applications. These modules typically operate at 10 Gbps per lane.

In summary, if you specifically need support for 10G, it's recommended to use SFP+ or QSFP+ modules, as QSFP28 is intended for higher data rates. Always check the compatibility and specifications of the networking equipment and modules to ensure they meet the desired requirements.