SFP28 stands for Small Form-Factor Pluggable 28. It is the third generation of the SFP interconnect systems designed for 25G performance per the IEEE 802.3by specification (25GBASE-CR). It has the same common form factor as the SFP+, and supports 25Gbps electrical interfaces per channel, making it a cost-effective way to connect within racks and across adjascent racks. It has the characteristics of low power consumption, small volume and high speed, which is beneficial to increase capacity of data center, improve port density and reduce power consumption.
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