Thunderbolt 3 cables, docks, and adapters for high-speed connectivity.
The 0.5m Thunderbolt 3 cable bundled with my Razer Core X Chroma had poor build quality, causing frequent eGPU disconnections, a common known issue. Fed up, I replaced it with Apple's 0.8m Thunderbolt 3 cable.
The CalDigit Thunderbolt 3 mini Dock, announced July 2018, comes from a maker known for the Thunderbolt Station 3. It has DisplayPort and HDMI variants; beyond the display connector, the HDMI version adds an extra port.
Wanting to drive two external displays from a single port, I learned USB-C allows only one display per port. The answer was Thunderbolt 3, so I bought the Cable Matters Thunderbolt 3 to Dual 4K DisplayPort Adapter.