“Is the Thunderbolt port 2-lane or 4-lane? I would like to connect an eGPU to it. Thanks.”
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According to the Thunderbolt™ 3 specifications, the Thunderbolt™ 3 Interface on the LG gram 17” Ultra-Lightweight Laptop with Intel® Core™ i7 processor, Model # 17Z990-R.AAS8U1, it will route up to 4 lanes of PCI express Gen 3 (4 x 8 Gbps) and up to two full (4 lane) links of DisplayPort out over the Thunderbolt cable and connector to the device(s) attached downstream from the host which in this case would be the laptop...^IFV
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