USB 3.0 Dual Power Y Cable, SNDIA Dual USB 3.0 Power Y Shape Type-A to Micro-B SuperSpeed Cable For WD/Seagate/Toshiba/Samsung/Hitachi External Hard Drives (35cm - 1 Foot - 0.35M) Allows you to power a single device from 2 USB ports. An additional USB type-A connector allows the cable to be connected to two USB ports (2.0 or 3.0) for maximum power and performance. Great for HDDs, PCs, laptops, mobile phones, digital cameras, printers. The compact 2-connector Y-design USB 3.0 A Male to Micro-B cable allows you to power a single device from 2 USB ports, and can be used to connect your USB 3.0 devices with a transfer rate of up to 5 Gbps System Requirements: In order to fully enjoy the benefits of the USB 3.0 specification, the device and source must be USB 3.0 compatible. Backwards compatible with high speed USB 2.0 devices and USB 1.1. Great for HDDs, PCs, laptops, mobile phones, digital cameras, printers, Wii-U or other devices with low power output USB ports.