D-Link DUB-E250 USB-C to 2.5G Ethernet Adapter

This is what matters about D-Link DUB-E250 USB-C to 2.5G Ethernet Adapter.

About

A Realtek RTL8156-family (inferred, not officially named by D-Link) 2.5Gbps adapter using the CDC-NCM model natively on macOS to avoid the CPU-pegging kernel panics that plagued older RTL8153-based adapters on Apple Silicon. WPA3-aware and plug-and-play across Mac, Windows and Linux.

Ports: 1× Ethernet (2.5GBASE-T) and 1× USB-C (host)

Confirmed with

  • Notebook (generic)

    "This D-Link adapter got suggested to me... and it works flawlessly" (MacBook, replacing a Belkin Thunderbolt 3 dock whose Ethernet broke after a macOS update). Separate reports document a macOS Monterey (12.6) kernel regression where the adapter disappears from the VLAN-creation GUI (requires CLI/ifconfig workaround), and a pre-Ventura loss of hot-plug capability.