USB 3.0 Y Cable with Extra USB 2.0 Power Leg, AM+AM to AF

Bus-powered external drives fail at the strangest times — not on the data sheet, but on the bench supply: a USB 3.0 port promises 900 mA, yet long cables, hubs and older ports deliver less, and the 2.5-inch drive clicks and drops out. This Y cable is the field fix: the main USB 3.0 A male plugs into the computer and carries data plus primary power, a second USB 2.0 A male taps a neighbouring port for supplemental current only, and the USB 3.0 A female end receives the drive’s own lead. Two ports, one stable drive.

An honest note on how the Y works: the USB 2.0 leg is power-only — it carries no data — so the drive still negotiates at SuperSpeed with the 3.0 host connection alone. If the drive runs fine on one port, leave the second leg unplugged; the cable is happy either way. It is also the correct shape for a small USB hub or any 3.0 A-female device whose power draw outruns the port it sits on.

Key features

• Y configuration: USB 3.0 AM + USB 2.0 AM to USB 3.0 AF
• Supplemental power leg fixes drive dropouts on weak ports
• SuperSpeed data on the 3.0 leg, power-only on the 2.0 leg
• Backward compatible with USB 2.0 and 1.1 devices
• Moulded strain-relieved connector bodies

Specifications

Typical duty: 2.5-inch external HDD and SSD enclosures, bus-powered DVD drives and USB hubs that reboot when a second device spins up. One Y in the toolkit has saved more drive investigations than any software ever will.

Typical applications

• 2.5-inch portable drives on weak or front-panel ports
• External optical drives and USB hubs needing extra current
• Long cable runs where voltage sags at the far end

Samples, packing options, payment terms and warranty conditions are set out in How to Order and Delivery Information.