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The Rise Of 400G In Data Center Jul 06, 2018

Moving to 400-Gbps transceiver of the data center can be seen as a two-halves game, and it would be interesting to see how things pan out in each: the client and the networking side. Currently, two competing multi-source agreements (MSAs) are vying for them in the plug-in space, both compete to be the form factor of the 400-Gbps era. This is all about quad small form factor pluggable double density (QSFP-DD) optical transceivers vs. octal small form factor pluggable (OSFP) optical transceivers.


The emergence of 400 Gbps is reshaping the data center and DCI optical landscape. The first half of this game is being played out right now on the client side. Perhaps QSFP-DD is in the lead but the second half of the game, on the line side, could well tilt the playing field in favor of OSFP.