Does the Surface Laptop 3 have USB-C port?

Yes, it does! All Surface Laptop 3 models come with a single USB Type-C 3.1 Gen 2 port as a standard. The port supports data transfers (with a speed up to 10Gbps or 1.25GB/s), display out, and charging. It located on the left side of the laptop next to the USB-A port and 3.5mm headphone jack. Here are the complete specs of the USB-C port.

• USB Type-C port.
• USB 3.1 Gen 2 standard.
• Transfers up to 10Gbps or 1.25GB/s.
• Supports DisplayPort 1.4 Alt Mode and Digital Audio.
• Supports up to two 4K UHD (3840×2160@60Hz).
• Supports Power Delivery revision 3.0 with power rules of 5v, 9v, 15v, and 20v supports chargers rated at 45W or bigger. It also backward compatible with PD 2.0.