We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular silver metal enclosure with Thunderbolt 5 port and 850W power supply

Sonnet Technologies

Sonnet Breakaway Box 850 T5 Thunderbolt 5 eGPU enclosure

SKU CH-9FE3-369S0

Connects a high-end desktop GPU to a Windows laptop via Thunderbolt 5 for 80 Gbps bandwidth and 850 W power delivery

  • 80 Gbps Thunderbolt bandwidth powers high-end GPU workloads
  • 850 W supply with 16-pin connector drives RTX 50, 40, 30 or Radeon 9000, 7000, 6000 cards
  • Triple-wide GPU support up to 13.58 x 6.10 x 2.76 in for optimal cooling
  • Three 8-pin or one 12VHPWR connectors ensure stable power delivery
  • Works with Windows 11 2024H2 on Thunderbolt 5, 4 or USB4 ports

Thunderbolt 5 eGPU enclosure for Windows

The Sonnet Breakaway Box 850 T5 connects a desktop graphics card to a Windows 11 computer through a single Thunderbolt 5 or 4 port. It is built for video editors, AI developers, medical imaging professionals and gamers who need desktop-class GPU performance from a laptop or small form factor system. The enclosure delivers up to 80 Gbps of bandwidth for high-speed data transfer.

Triple-wide GPU support with 850 W power supply

The chassis accepts graphics cards up to 13.58 x 6.10 x 2.76 inches, covering triple-wide models from the NVIDIA GeForce RTX 50, 40 or 30 series and AMD Radeon RX 9000, 7000 or 6000 series. An internal 850 W unit provides three 8-pin or one 16-pin 12VHPWR connector for stable power delivery. A 5 Gbps Ethernet port adds wired networking without extra adapters.

Quiet cooling under sustained workloads

The enclosure’s cooling layout moves air across the full length of a triple-slot card to keep temperatures in check during long rendering, training or gaming sessions. Fan speed ramps with load so the system stays quiet at idle and maintains airflow when the GPU is fully utilised. This thermal headroom lets the installed card hold boost clocks for extended periods.

Highlights

  • 80 Gbps Thunderbolt bandwidth powers high-end GPU workloads
  • 850 W supply with 16-pin connector drives RTX 50, 40, 30 or Radeon 9000, 7000, 6000 cards
  • Triple-wide GPU support up to 13.58 x 6.10 x 2.76 in for optimal cooling
  • Three 8-pin or one 12VHPWR connectors ensure stable power delivery
  • Works with Windows 11 2024H2 on Thunderbolt 5, 4 or USB4 ports

Specifications

No published specifications for this item yet.

Questions about this item

What GPU width does the 13.58-inch slot accept?

The enclosure fits triple-wide cards up to 13.58 x 6.10 x 2.76 inches, so most full-length triple-slot RTX 50, 40, 30 or Radeon 9000, 7000, 6000 models will install without clearance issues.

How loud is the cooling system when the 850W supply runs continuously?

The unit is described as ultra-quiet; the large internal volume and optimised airflow keep fan speeds low even under sustained load, so noise stays at a low background hum during all-day rendering or gaming sessions.

Which Thunderbolt or USB4 port version must my laptop already have?

A Windows 11 2024H2 system with Thunderbolt 5, Thunderbolt 4 or USB4 is required; the enclosure uses the 80 Gbps Thunderbolt 5 link for full bandwidth and also provides 5 Gbps Ethernet through its built-in dock.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.