MINISFORUM DEG1 eGPU Dock for RTX 4090 & RX 7900 XTX

The DEG1 eGPU Dock from MINISFORUM is a purpose-built expansion chassis that extends a compact PC's graphics potential through an Oculink 4i uplink and a PCIe x16 downlink. Designed for users who need desktop‑class GPU performance without replacing a small form factor machine, the DEG1 accepts standard ATX or SFX power supplies and accommodates high‑end cards. It does not include the GPU or power supply and requires the host PC to support Oculink; Thunderbolt is not supported.

How does the DEG1 connect my mini PC to a desktop GPU?

The dock uses an Oculink 4i (PCIe 4.0 x4) uplink to carry PCIe data to the enclosure, then routes that signal to a PCIe x16 slot for the graphics card. This lets compatible mini PCs access a full‑length desktop GPU while keeping the small PC as the system brain. Note that the Oculink interface is not hot‑pluggable—power down the host before connecting.

• Up link: Oculink 4i (PCIe 4.0 x4) — Oculink required
• Down link: PCIe x16 (PCIe 4.0 x4) for the GPU
• Oculink does not support hot plug; shut down before attach/detach

Which GPUs and power supplies will the DEG1 support?

The enclosure is sized to accept high‑end graphics cards such as NVIDIA RTX 4090 and AMD RX 7900 XTX, while offering flexible power options by supporting both ATX and SFX standard PSUs. Because the PSU is external to the dock, you can choose a unit that provides the wattage and connectors your GPU needs. The DEG1 ships without a power supply or GPU, so plan for both when purchasing.

• Compatible with full‑length desktop GPUs including RTX 4090, RX 7900 XTX
• Supports ATX and SFX standard power supplies for flexible power choices
• Power supply and GPU sold separately

Will DEG1 work automatically with my mini PC?

Basic connectivity via Oculink allows most compatible systems to use the external GPU, but advanced features vary. The follow‑start (auto power) function works only with select MINISFORUM mini PCs and requires the original manufacturer cable. For other systems, manual power sequencing and BIOS settings may be necessary.

• Follow‑start auto power: compatible only with MINISFORUM Mini PCs using original cable
• Non‑MINISFORUM PCs may require manual power on/off and BIOS configuration
• Does not support Thunderbolt — Oculink only

How do I set up and maintain the DEG1 safely?

Always power off both the host and the dock before plugging or unplugging the Oculink cable, and install the GPU and PSU before first boot. Make sure the PSU connectors are properly seated and cable management leaves clearance for airflow. Regularly check fans and vents to keep temperatures under control when running demanding workloads.

• Turn off host and dock before connecting Oculink — no hot plugging
• Install GPU and PSU before initial power-up; confirm all cables are secure
• Keep vents and fans clean for reliable cooling and longevity

Who is this for: The MINISFORUM DEG1 eGPU Dock is aimed at enthusiasts, creative professionals, and gamers who run compact PCs but need desktop‑class GPU performance. It’s ideal if you own a mini PC with Oculink, want to upgrade graphics without replacing your whole system, and prefer the flexibility to choose your own GPU and power supply. Avoid this dock if your machine lacks Oculink or you expect plug‑and‑play Thunderbolt support.