USB 3.0 to Micro B Y-Cable – HDD Power & Data Splitter
USB 3.0 to Micro B Y-Cable – HDD Power & Data Splitter
USB 3.0 Dual-Port Y-Cable for Hard Drives – Data + Extra Power in One
Keep your external hard drive running smoothly with the OULLX USB 3.0 Male to Micro B Male Y-Splitter Cable. Designed for high-capacity HDDs that require more than a single USB port can supply, this cable combines a data connection with a dedicated auxiliary power line — giving your drive all the current it needs for stable, reliable operation.
Why You Need This Cable
Standard USB 3.0 ports deliver up to 500mA of current. Many larger-capacity external hard drives demand more power than that. This Y-cable taps into a second USB port purely for supplemental power, ensuring your HDD spins up fully and transfers data without interruptions or disconnections.
- USB 3.0 Standard: Full-speed data transfer at USB 3.0 rates with backward compatibility
- Dual USB-A Connectors: One for data + power, one dedicated to extra power supply
- Micro B Connector: Fits standard Micro B HDD and device ports
- 20 cm Auxiliary Line: Conveniently sized secondary power lead for flexible desk setups
- LDPE/PVC Insulation: High-fidelity internal insulation reduces signal attenuation and interference for cleaner data transmission
- Plug & Play: No drivers or assembly required — connect and go
- No High-Concern Chemicals: Manufactured without hazardous substances
Key Specifications
- Connector A: USB 3.0 Type-A Male (x2)
- Connector B: Micro B Male
- Secondary Power Lead Length: 20 cm
- Cable Type: Y-Splitter with auxiliary power cord
- Compatible With: External HDDs, portable hard drives, and other Micro B devices requiring extra current
- Assembly Required: No
- Package Contents: 1 × USB 3.0 to Micro B Y-Cable
Made in Mainland China.
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Frequently Asked Questions
Q: What is a USB 3.0 Y-cable and why do I need one for my HDD?
A: A USB 3.0 Y-cable (or Y-splitter cable) connects to two USB-A ports on your computer simultaneously — one port handles both data transfer and primary power, while the second port provides additional current. Many high-capacity external hard drives draw more than the 500mA a single USB 3.0 port provides, so the auxiliary power line ensures stable operation and prevents data loss or disconnections.
Q: Will this cable work with my existing USB 2.0 port?
A: Yes, the cable is backward compatible with USB 2.0 ports. However, for best data transfer speeds and sufficient power delivery, it is recommended to use USB 3.0 ports (typically identified by a blue color inside the port).
Q: What is the length of the secondary power lead?
A: The secondary (auxiliary) power lead is a standardized 20 cm (approximately 7.9 inches) long, giving you enough flexibility to reach a nearby USB port on your laptop or desktop without cluttering your workspace.
Q: Does this cable support data transfer or is the second USB plug only for power?
A: The second USB-A connector on this Y-cable is designated exclusively for supplemental power supply. All data transfer is handled through the primary USB 3.0 connection, keeping your data signal clean and interference-free.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.