Sonnet eGFX Breakaway Box 850 T5

Lists support for NVIDIA GeForce RTX 50-, 40-, and 30-series cards and AMD Radeon RX 9000-, 7000-, and 6000-series cards, a genuinely broad, current compatibility range spanning multiple GPU generations from both major manufacturers. Accepts triple-wide cards up to 345 x 155 x 70mm, with three 8-pin connectors or one 16-pin 12VHPWR connector — real physical and electrical flexibility for connecting virtually any current desktop GPU's specific power connector configuration.

Integrated 850W PSU and up to 100W laptop charging through the same Thunderbolt 5 connection, meaning a single cable both powers the connected laptop and delivers GPU acceleration simultaneously.

In testing, this enclosure hit 92% of desktop GPU performance over Thunderbolt 5, compared to 78-82% over Thunderbolt 4 in the same benchmark — a real, substantial performance gap specifically from the doubled 80Gbps bandwidth over Thunderbolt 5 removing the PCIe 3.0 x4 bottleneck that constrains Thunderbolt 4 enclosures.

Versus Sonnet's own 750ex — that stays on the older Thunderbolt 3 standard and accepts only double-width cards, a real step down in both connectivity speed and physical GPU compatibility versus this 850 T5. Versus the Razer Core X V2 — both offer Thunderbolt 5 and comparable PSU wattage; the specific choice comes down to Sonnet's Mac-focused engineering heritage versus Razer's broader brand ecosystem.