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Acasis 40Gbps USB4 eGPU Dock vs Sonnet eGFX Breakaway Box 350: Comparison
Acasis 40Gbps USB4 eGPU Dock and Sonnet eGFX Breakaway Box 350 differ on connection standard: Acasis 40Gbps USB4 eGPU Dock at USB4 (40 Gbps), compatible with Thunderbolt 4/3 hosts, Sonnet eGFX Breakaway Box 350 at Thunderbolt 3.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | USB4 (40 Gbps), compatible with Thunderbolt 4/3 hosts | Thunderbolt 3 |
| Brand | Acasis | Sonnet |
| Extra Ports | Varies by SKU; typically includes USB-A passthrough | None onboard beyond the GPU's own outputs |
| Cooling Type | Active fan, compact all-metal shell | Active, ultra-low-noise Noctua fan |
| Model | 40Gbps USB4 eGPU Dock | eGFX Breakaway Box 350 |
| Price | Typically $150-$250 depending on bundle | Launched around $299 (2017) |
Price comparison
| Retailer | Acasis 40Gbps USB4 eGPU Dock | Sonnet eGFX Breakaway Box 350 |
|---|---|---|
| Full Compass | View on Full Compass |
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
Acasis 40Gbps USB4 eGPU Dock
5.5 / 10 Expert Rating
A capable budget USB4 eGPU dock for the price, but a newer brand without the certification pedigree of Sonnet or OWC.
Sonnet eGFX Breakaway Box 350
6 / 10 Expert Rating
A niche but well-executed pick for single-slot cards and quiet operation, not for gaming-class GPUs.