MCIO-equipped GPD G2 eGPU dock gets fully detailed ahead of launch

GPD has detailed the G2 dock, which is meant to pair with the GPD Box mini PC that comes with the MCIO 8i port. This interface stands as a better option than the traditional OCuLink PCIe 4.0 x4 standard, as it has 8 lanes instead of 4.

Of course, on the spec sheet of the GPD G2 dock, there's mention of PCIe 4.0 x8 support for the MCIO port, while the company has confirmed that the port on the GPD Box supports PCIe 5.0 x8. We reached out to GPD, and a company representative has clarified that the dock physically supports PCIe 5.

However, the MCIO and USB4 v2 or Thunderbolt 5 mutual interference prevents the speed from reaching the PCIe 5.0 x8 level. Regardless, even while being on the PCIe 4.0 standard, with 8 lanes, it should offer a higher bandwidth speed than the OCuLink ports found in most modern mini PCs and gaming handhelds.

The company has also shared that the PCIe slot for the GPU on this dock is a Gen 5 x16 slot, with effective bidirectional data bandwidth of around 126GBps. There's one 80Gbps USB4 v2 port, which broadens the compatibility of this eGPU, and it has support for PD 3.0 with 100W power delivery (5-feet Silkland USB4 v2 cable curr. $24.95 on Amazon).

Another key spec confirmed is that the built-in PSU has an output rating of 800W, and with the 12V-2×6 power slot, it should be able to run any desktop GPU, including the Nvidia RTX 5090. There's also an NVMe M.2 slot with PCIe 3.0 x2 interface, and it can help expand the storage of the connected host.

Among the other ports are two USB 3.2 Gen 2 Type-A and one gigabit Ethernet port. GPD hasn't shared the price and availability details yet, but the G2 eGPU dock is expected to launch soon.