Question about Aukey OmniaMix II

Yes, you can charge your Surface Book 2 with the Aukey OmniaMix II (140 W) charger via USB-C. This charger supports Power Delivery 3.1 technology and can deliver up to 140W, which is enough to charge laptops like the Surface Book 2. In particular, the USB-C ports of the charger can deliver up to 65 W or 130 W combined, which is sufficient for charging your Surface Book 2.