Thought I'd share this comparison. I have domestic 10Gbps FTTH service (rated 10G down / 2G up) and use in-wall Cat 6A cable from my modem to my working desk and an iMac 5K Retina. Until recently I used a AKiTiO Thunder2 10G adapter which worked nice initially but then throughput degraded from ~7Gbps to ~3Gbps after about a year. First I thought my iSP is throttling access but the AKiTiO box degraded. It's a bus powered device, no external power.
Then recently I noted a new Sonnet Technologies Twin 10G Thunderbold 3 adapter becoming available (also in SFP+ available), this one has external power and the box is a bit larger but still small enough to hide it under the desk. Attached in the graphics are the differences: Sonnet is back to ~7Gbps albeit at slightly lower uplink speeds.
Then recently I noted a new Sonnet Technologies Twin 10G Thunderbold 3 adapter becoming available (also in SFP+ available), this one has external power and the box is a bit larger but still small enough to hide it under the desk. Attached in the graphics are the differences: Sonnet is back to ~7Gbps albeit at slightly lower uplink speeds.
