
Ugreen USB-A (male) - USB-A (female) adapter extension cable USB 3.0 5Gb/s | US129
The UGREEN US129 is a USB 3.0 extension cable with a USB-A male plug on one end and a USB-A female socket on the other. It extends the reach of a USB device or brings a hard-to-reach USB port, such as one on the back of a computer, closer to you, with data transfer up to 5Gbps.


Available lengths: 0.5 m (#30125), 1 m (#10368), 1.5 m (#30126), 2 m (#10373), 3 m (#30127), 5 m (#90722).
USB 3.0 speed up to 5Gbps: The cable supports USB 3.0 transfer rates of up to 5Gbps, so a fast flash drive or portable hard drive connected through it keeps its USB 3.0 speed, as long as the computer port is also USB 3.0.
Backward compatible: It also works with USB 2.0 ports and devices, at USB 2.0 speed.
Gold-plated connectors: Both the plug and the socket are gold-plated, which resists corrosion and helps keep a reliable contact over repeated plugging.
Who it's for / Works with
USB-A devices such as flash drives, portable hard drives, card readers and other USB accessories that need to reach further than their own cable allows.
Good to know
The 5Gbps speed is reached only when both the computer port and the connected device are USB 3.0 or newer.
Technical Specifications
| Model | US129 |
| Connector 1 | USB-A male (USB 3.0) |
| Connector 2 | USB-A female (USB 3.0) |
| Data Rate | Up to 5Gbps |
| Compatibility | USB 3.0, backward compatible with USB 2.0 |
| Connector Plating | Gold-plated |
| Color | Black |
| Lengths | 0.5 m (#30125), 1 m (#10368), 1.5 m (#30126), 2 m (#10373), 3 m (#30127), 5 m (#90722) |
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