The Sonnet Breakaway Box 850 T5 is Sonnet's first Thunderbolt 5 eGPU enclosure, sized for triple-wide 13.5" graphics cards drawing up to 600W from its internal 850W universal PSU. The 80 Gbps upstream Thunderbolt 5 connection delivers 100W of Power Delivery back to a compatible Windows 11 host, while an integrated Thunderbolt dock adds a second TB5 port for 15W PD daisy-chaining, three 10 Gb/s USB 3.2 Gen 2 Type-A ports (each providing 7.5W for USB NVMe SSDs), and a Realtek 5GbE RJ-45 for multi-gig wired networking. Mains power arrives via an IEC C14 inlet.
Sonnet’s 850W Thunderbolt 5 eGPU enclosure with triple-wide GPU support, 100W upstream PD, integrated TB5 dock, 3x USB-A 10Gb/s, and 5GbE.
Device Information
- Manufacturer
- Sonnet
- Release Year
- 2025
- Model Number
- GPU-850-T5
- Category
- egpu-enclosure
Available Ports
| Connector | Quantity | Label | Notes |
|---|---|---|---|
| Thunderbolt 5 (USB-C) | 1 | Thunderbolt 5 (Upstream) | 80 Gbps upstream to host. Delivers 100W upstream PD. |
| Thunderbolt 5 (USB-C) | 1 | Thunderbolt 5 (Downstream) | Integrated dock. 15W PD for daisy-chained TB5 peripherals. |
| USB Type-A (USB 3.2 Gen 2) | 3 | USB-A 10Gb/s | 10 Gb/s. Each port provides up to 7.5W — suitable for USB NVMe SSDs at full speed. |
| RJ-45 (100BASE-TX Fast Ethernet) | 1 | 5GbE LAN | Realtek RTL8157 5G/2.5G/1G/100M multi-gig RJ-45. Not in Cablebabe approved list — flagged for manual review. |
| IEC C14 (3-Pin Power Inlet) | 1 | AC Mains Inlet | Internal 850W universal PSU (100-240 VAC). Accepts a standard C13 kettle cord. |
Notes & Compatibility
5GbE port uses Realtek RTL8157 controller and auto-negotiates 5G/2.5G/1G/100M — represented here as a proprietary 5GBASE-T entry because 5GbE is not in the approved connector list. Flag for manual review. PCIe slot and GPU power harness are internal and not listed.
