Lenovo 4X90K06975 ThinkPad OneLink+ RJ45 Ethernet Adapter

The Lenovo 4X90K06975 ThinkPad OneLink+ to RJ45 Adapter is a single-purpose accessory that converts a ThinkPad's OneLink+ port into a standard RJ45 Ethernet jack. For professionals who depend on stable, low-latency network connectivity — whether for large file transfers, video conferencing, or accessing corporate network resources — a wired connection is often non-negotiable, and this adapter delivers that capability in a compact form factor with an 8.6-inch cable.

Because this adapter uses Lenovo's proprietary OneLink+ interface, it is designed exclusively for compatible ThinkPad models and will not work with other laptops or connection types. This narrow compatibility is the key tradeoff: the adapter integrates seamlessly with supported ThinkPads but offers zero versatility beyond that ecosystem. For travelers and office workers with OneLink+-equipped ThinkPads, it provides a reliable and portable way to get online without depending on wireless networks.