Cable Matters 2-Pack Micro USB 3.0 Cable (Micro USB 3 Cable A to Micro B) in Black 3 Feet VERSATILE USB 3.0 MICRO USB data cable connects an external hard drive, USB hub, smartphone or tablet with the thin USB 3.0 Micro USB port SUPERSPEED USB 3.0 data transfer rate up to 5 Gbps for fast file transfers from a computer to an external hard drive or a USB 3.0 Hub COST-EFFECTIVE 2-PACK provides a spare cable to leave at the desktop SUPERIOR CONSTRUCTION combines gold-plated connectors with molded-strain relief, bare copper conductors, and foil & braid shielding for long life and a reliable signal transmission MICRO-USB COMPATIBLE with portable USB 3.0 external hard drives such as Toshiba Canvio, Seagate FreeAgent, and Western Digital (WD) My Passport / Elements