Not sure how accurate this would be, but taken from the CC transcript
Suresh
"06:40 – Let’s take a look at some numbers here. A single copper direct-attached cable consumes about three watts of power per end, so the total link is about six watts of power. An optical solution can effectively provide the same capability in about a watt of power. So you save about five watts of power when making that transition.
07:02 – A single mega data center has anywhere between 10,000 and 100,000 servers. So just roughly estimating that there are potentially 100,000 copper links, I mean, we are talking about half a million watts of power that you can save through a reasonable conversion of copper cables to optical cables. And that is a fairly significant savings on OPEX. So data communications, from that perspective, is really primed for what we consider to be an integrated opto-electronic device and process platform, something that can really enable low power, minimize size and minimize components costs in any solution."