What Is a Crossover Cable?

A crossover cable connects two devices of the same bang out.

Compared to straight-through Ethernet cables, the internal wiring of a crossover cable reverses the transmit and receive signals.

Ethernet Internet cables in seven colors

Tom Grill / Photographer’s Choice RF / Getty Images

Many are red and have “crossover” stamped on the packaging and wire casing.

Do You Need a Crossover Cable?

Both the original and Fast Ethernet standards were designed to use specific wires to transmit and receive signals.

A feature of Ethernet called MDI-X provides the necessary auto-detection support to prevent these signal conflicts.

Only one end of a connection needs to support auto-detection for this feature to work.

Modern Ethernet devices automatically detect the use of crossover cables and work with them seamlessly.

How to Use Ethernet Crossover Cables

You should only use crossover cables for direct connection connections.

you’ve got the option to purchase these cables through electronics outlets.

Hobbyists and IT professionals often prefer to make their own crossover cables instead.