SaiTech IT 4 Pack (35cm - 1 Foot - 0.35M) USB 3.0 A to Micro B SuperSpeed Cable for External Hard Drives- Blue Ensures reliable data communication with external storage devices. Backward compatible with USB 2.0 Connector A: USB 3.0 A (9 pin SuperSpeed) Male Connector B: USB 3.0 Micro-B (10 pin SuperSpeed) Male Superspeed USB 3.0 cable A to Micro B (10pin) Quickly transfer data from an external storage device to your PC or Laptop at 10x the speed of USB 2.0 Great for lost or broken USB 3.0 Cables for external hard drives