Consumercarts is reader-supported. Learn more
Sonnet eGFX Breakaway Box 650 vs UGREEN LinkStation eGPU Dock: Comparison
Sonnet eGFX Breakaway Box 650 and UGREEN LinkStation eGPU Dock separate most on host power delivery: Sonnet eGFX Breakaway Box 650 at 87, UGREEN LinkStation eGPU Dock at 4, 95% in favour of Sonnet eGFX Breakaway Box 650. Max GPU Length splits them by another 92%, this time favouring UGREEN LinkStation eGPU Dock.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | Thunderbolt 3 | OCuLink (64 Gbps) and USB4 (40 Gbps) dual connectivity |
| Brand | Sonnet | UGREEN |
| Extra Ports | None onboard beyond the GPU's own outputs | Partially open metal chassis for airflow; styled after RTX 50-series Founders Edition cards |
| PSU Wattage | 650-24% | 850 |
| Host Power Delivery | 87 | 4-95% |
| Max GPU Length | 310-92% | 4090 |
| Cooling Type | Active Fan | Active fan plus open-frame chassis ventilation |
| Model | eGFX Breakaway Box 650 | CM980 LinkStation eGPU Dock |
| Price | Launched around $449 (2018) | Launched around $269-$299 (2025) |
Price comparison
| Retailer | Sonnet eGFX Breakaway Box 650 | UGREEN LinkStation eGPU Dock |
|---|---|---|
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Sonnet eGFX Breakaway Box 650
7 / 10 Expert Rating
The right-sized Sonnet box for mid-range Thunderbolt 3 cards, officially Mac-certified.
UGREEN LinkStation eGPU Dock
7.5 / 10 Expert Rating
A strong-value, high-wattage dual-connectivity dock from a large, well-established accessories brand — a serious new competitor in the OCuLink space.
More comparisons in External GPU Enclosures
- PowerColor Gaming Station Mini Pro vs UGREEN LinkStation eGPU Dock
- AOOSTAR EG02 TB5 OCuLink eGPU Dock vs UGREEN LinkStation eGPU Dock
- Plugable Thunderbolt 5 AI eGPU Enclosure & Dock vs UGREEN LinkStation eGPU Dock
- Razer Core X vs Sonnet eGFX Breakaway Box 650
- HP OMEN Accelerator vs Sonnet eGFX Breakaway Box 650
- GIGABYTE AORUS GTX 1070 Gaming Box vs Sonnet eGFX Breakaway Box 650