https://www.macfixit.com.au/collections/expansion-interfaces/products/sonnet-thunderbolt-3-upgrade-card-for-echo-express-iii-d-and-iii-r
Sonnet Thunderbolt 3 Upgrade Card for Echo Express III-D and III-R - Macfixit Australia
The Thunderbolt 3 Upgrade Card from Sonnet upgrades your Thunderbolt 2 system to 40 Gb/s Thunderbolt 3. By replacing the existing Thunderbolt interface...
echo express iiiupgrade card
https://www.macfixit.com.au/collections/expansion-interfaces/products/sonnet-echo-express-iii-d-thunderbolt-3-hdx-pcie-expansion-card-enclosure
Sonnet Echo Express III-D Thunderbolt 3 HDX PCIe Expansion Card Enclosure - Macfixit Australia
Expand the capabilities of your Thunderbolt 3-compatible computer system by adding up to three full-length PCIe cards using the Echo Express III-D Thunderbolt...
sonnet echo expressiiihdxpcie