This is the Certificate of Conformacy for the 60W power supply provided with Sonnet's SF3 Series Card Readers, and the Thunderbolt 2 and 3 Editions of the Echo Express SEL, Echo Express SE-I, and Twin 10G.
We have found that a macOS client just ping-pongs back and forth between the two ports with no increase in performance. There is an increase in performance with only a macOS server that is connected to multiple clients. To get link aggregation to work, the switch must be capable of supporting it and the two switch ports connected to the Twin 10G must be configured as bonded ports.