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Black rectangular eGPU enclosure with Thunderbolt and USB4 ports

RIITOP

RIITOP 40Gbps USB4 Thunderbolt 4 eGPU Docking Station

SKU CH-9D7Q-VGK83

A 40 Gbps USB4 and Thunderbolt 4 enclosure adds desktop GPU power to thin laptops and NUCs

  • ColorBlack
  • Boosts graphics on thin laptops via 40Gbps USB4/Thunderbolt 4 link
  • Runs latest RTX 5090 D, 5080, 5070 Ti, 5070 and AMD RX 7000 GPUs
  • Powers AI, rendering, video editing and gaming workloads
  • Needs host with Thunderbolt 3/4 or USB4 at 40Gbps plus ATX/SFX PSU
  • macOS 10.13.4+ works with AMD cards only; no NVIDIA support

USB4 eGPU Dock for Thin Laptops

The RIITOP docking station adds desktop-class graphics to thin, light or older laptops and NUCs that have a 40Gbps USB4 or Thunderbolt port. It targets users who need AI computing, rendering, video editing or gaming performance beyond the built-in GPU. Buyers without a 40Gbps host port cannot use this enclosure at all.

Bandwidth and macOS Limits

The enclosure requires a host connection running at 40Gbps over USB4 or Thunderbolt 3 or 4; slower ports will not work. On macOS 10.13.4 or later only AMD cards are supported and no driver installation is needed, while NVIDIA cards are not supported on Mac at all. Windows users can install either vendor’s supported GPUs.

Installation Steps and Common Issues

Setup involves mounting the graphics card with the supplied copper pillar, securing an ATX or SFX power supply with the black bracket, then connecting the 24-pin ATX cable and the USB4 cable. The most frequent problems are attempting to use a host port below 40Gbps, forgetting the external power supply, or trying to run an NVIDIA card on macOS where it will not function.

Highlights

  • Boosts graphics on thin laptops via 40Gbps USB4/Thunderbolt 4 link
  • Runs latest RTX 5090 D, 5080, 5070 Ti, 5070 and AMD RX 7000 GPUs
  • Powers AI, rendering, video editing and gaming workloads
  • Needs host with Thunderbolt 3/4 or USB4 at 40Gbps plus ATX/SFX PSU
  • macOS 10.13.4+ works with AMD cards only; no NVIDIA support

Specifications

ColorBlack

Questions about this item

Which Thunderbolt or USB4 port speed do I need on my laptop for this dock to work?

The dock requires a Thunderbolt 4, Thunderbolt 3 or USB 4 port that delivers 40Gbps bandwidth; slower ports will not allow the eGPU to function.

What does the 40Gbps headline figure mean once the dock is connected to a real machine?

It provides a PCIe 4.0 x16 link to the graphics card at up to 40Gbps, letting the GPU run at near-native speed for rendering, gaming and AI workloads.

What interface standard does the dock use and what does it cap in practice?

It uses USB 4.0 and Thunderbolt 4, which cap the external GPU link at 40Gbps and require a host port with the same bandwidth.

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