Red 4Pre and 8Pre

The Red 4Pre and Red 8Pre feature two Thunderbolt 2 ports. Thunderbolt 2 has two 10 Gbps bi-directional channels and combines them into a single 20 Gbps bi-directional channel.

Red 8Line and 16Line

The Red 8Line and Red 16Line feature two Thunderbolt 3 ports. Thunderbolt 3 has a bandwidth of 40Gbps.

The Thunderbolt ports on the interfaces are in line with the Thunderbolt specification and will therefore also provide power to bus-powered Thunderbolt devices connected to them.