It sounds like you're referring to a Type C to LAN (Gigabit Ethernet) adapter that's possibly marketed as supporting 10/100 Mbps speeds, but might be advertised as "fake" or inaccurate in some way.

To clarify:

• Type C: Refers to a USB-C connector, commonly found on modern laptops, smartphones, and other devices.
• LAN GIGA (Gigabit Ethernet): Typically refers to 1000 Mbps (1 Gbps) Ethernet speeds, which is the standard for modern wired networks.
• 10/100: Refers to 10 Mbps and 100 Mbps Ethernet speeds, which are older standards.

If the product claims to be a Gigabit Ethernet adapter but only supports 10/100 speeds (which are slower), it could be misleading or inaccurately labeled. Some cheap adapters might claim to support faster speeds but are limited to older standards, or they may only work at the lower speeds due to hardware limitations.

Are you looking for a reliable Type C to Gigabit Ethernet adapter, or are you concerned about a specific product being falsely advertised?