SpeedFusion engine physichal attributes


In this video from 2018 Martin shows a very small speed fusion engine, without the top-mounted heatsink. It seems a lot smaller than the one with the heatsink. Are the lte and the lte-a version mounted in different chassis?

That was the LTE version (CAT4) which came without a heatsink. The LTE-A (CAT6) had the heatsink added. You can see them in the picture below. I would suspect that since everyone is buying the CAT6 version now that finding a SFE without an attached heatsink will be tricky.

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