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Plugable Thunderbolt 5 AI eGPU Enclosure & Dock vs Sonnet eGFX Breakaway Box 650: Comparison
Plugable Thunderbolt 5 AI eGPU Enclosure & Dock and Sonnet eGFX Breakaway Box 650 separate most on psu wattage: Plugable Thunderbolt 5 AI eGPU Enclosure & Dock at 850, Sonnet eGFX Breakaway Box 650 at 650, 24% in favour of Plugable Thunderbolt 5 AI eGPU Enclosure & Dock. Max GPU Length splits them by another 10%, again favouring Plugable Thunderbolt 5 AI eGPU Enclosure & Dock.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | Thunderbolt 5, 80Gbps (backward compatible with Thunderbolt 4 / USB4); internal PCIe Gen 4 x4 slot | Thunderbolt 3 |
| Brand | Plugable | Sonnet |
| Extra Ports | 1x downstream Thunderbolt 5 (15W PD), 1x USB-C 10Gbps (15W), 3x USB-A 10Gbps (7.5W each), 2.5GbE Ethernet | None onboard beyond the GPU's own outputs |
| PSU Wattage | 850 | 650-24% |
| Host Power Delivery | 96 | 87-9% |
| Max GPU Length | 346 | 310-10% |
| Cooling Type | Single internal enclosure fan; GPU must supply its own cooling solution | Active Fan |
| Model | TBT5-AI | eGFX Breakaway Box 650 |
| Price | $629.99 launch price, enclosure only (GPU sold separately) | Launched around $449 (2018) |
Price comparison
| Retailer | Plugable Thunderbolt 5 AI eGPU Enclosure & 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
Plugable Thunderbolt 5 AI eGPU Enclosure & Dock
7 / 10 Expert Rating
A genuinely differentiated, well-specced Thunderbolt 5 eGPU box for local-AI GPU hosting, but it's brand new, Windows-only, and still awaiting independent benchmarking — treat the manufacturer's numbers as a starting point, not a verified ceiling.
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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