I've already got a bunch of servers and clients with 10GBase-t copper NICs installed but I'd like to upgrade the switch. I've seen an Arista I like the features of but it's only got QSFP+ 40Gb ports on it. I've looked for 10GB SFP+ Arista switches but they seem to be way more expensive second hand than the 40Gb (at least the ones with SDA and VXLAN). Is there a way to get from QSFP+ to 10GBase-t via converters or breakouts as I'd like to avoid having to replace all the existing NICs.