us wire and cable extension cord

Power extension cords use IEC 60320 C13/C14 connectors and standard NEMA 5-15P to NEMA 5-15R plugs/receptacles. USB extension cables use USB Type-A male-to-female connections.

Available lengths include 1 ft, 3 ft, 6 ft, 10 ft, 15 ft, 25 ft, and about 49 ft (one listing shows 48.99 ft). Some items are also listed in metric, for example 2 m (about 6.56 ft).

Many USB extension listings highlight braided nylon jackets and gold-plated connectors to improve durability, corrosion resistance, and reduce tangling.

Listings show braided nylon jackets on some USB 3.0 cables and PVC-protected jackets on other USB 3.0 extension cords.

Many entries display a Lifetime Limited Warranty. Package quantities include single cords and multi-packs—for example, a 3-pack is listed for a 2 m USB extension.