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AOOSTAR EG01 OCuLink eGPU Dock vs Sonnet eGFX Breakaway Box 650: Comparison
AOOSTAR EG01 OCuLink eGPU Dock and Sonnet eGFX Breakaway Box 650 separate most on max gpu length: AOOSTAR EG01 OCuLink eGPU Dock at 16, Sonnet eGFX Breakaway Box 650 at 310, 95% in favour of Sonnet eGFX Breakaway Box 650. PSU Wattage splits them by another 77%, again favouring Sonnet eGFX Breakaway Box 650.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | OCuLink, PCIe 4.0 x4 | Thunderbolt 3 |
| Brand | AOOSTAR | Sonnet |
| Extra Ports | None beyond the OCuLink/PCIe interface | None onboard beyond the GPU's own outputs |
| PSU Wattage | 150-77% | 650 |
| Max GPU Length | 16-95% | 310 |
| Cooling Type | Open-frame, relies on ambient airflow and the card's own cooler | Active Fan |
| Model | EG01 | eGFX Breakaway Box 650 |
| Price | Around $99-$150 (2025) | Launched around $449 (2018) |
Price comparison
| Retailer | AOOSTAR EG01 OCuLink eGPU Dock | Sonnet eGFX Breakaway Box 650 |
|---|---|---|
| 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
AOOSTAR EG01 OCuLink eGPU Dock
5 / 10 Expert Rating
A genuinely budget OCuLink option for small cards, but its limited power output rules out flagship GPUs.
Sonnet eGFX Breakaway Box 650
7 / 10 Expert Rating
The right-sized Sonnet box for mid-range Thunderbolt 3 cards, officially Mac-certified.
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