Ugreen UG- 30701 USB-C Male to USB 3.0 A Female Cable

The Ugreen UG-30701 represents a compact OTG (On-The-Go) connectivity solution designed to expand USB-C device functionality. This 15cm adapter cable features USB-C 3.1 Gen1 male to USB 3.0 Type-A female architecture, enabling USB-C smartphones, tablets, and laptops to function as host devices. Built with tin-plated copper conductors and gold-plated connectors, the cable implements multiple internal shielding layers and specialized OTG circuitry including 10nf capacitance and 5.1kΩ pull-down resistor configuration.

USB 3.0 SuperSpeed Data Transfer Performance

The UG-30701 cable delivers USB 3.0 SuperSpeed data transfer rates up to 5Gbps. This specification provides 10x faster performance compared to USB 2.0 standards at 480Mbps. Consequently, users can transfer large video files, photo libraries, and document collections between USB flash drives and mobile devices in significantly reduced timeframes.

Furthermore, the Ugreen 30701 maintains consistent transfer speeds across the entire 15cm cable length through its multi-layer electromagnetic interference shielding. This construction minimizes signal degradation and data corruption during high-bandwidth operations, ensuring reliable file synchronization between peripherals and host devices.

OTG Functionality with Specialized Circuitry

This cable implements USB On-The-Go technology through dedicated electronic components. The UG-30701 incorporates a 10nf capacitance component combined with a 5.1kΩ pull-down resistor circuit that enables proper OTG protocol identification. These specifications ensure compatible USB-C devices correctly recognize and switch to host mode when peripherals connect.

Additionally, the Ugreen 30701 enables direct peripheral connections without requiring powered USB hubs or additional adapters. Users can connect USB keyboards, mice, game controllers, external storage devices, card readers, printers, and cameras directly to USB-C smartphones and tablets that support OTG functionality.

Premium Construction with Gold-Plated Connectors

The Ugreen UG-30701 features gold-plated contact surfaces on both USB-C male and USB-A female connectors. Gold plating provides superior corrosion resistance compared to standard nickel or tin plating, maintaining optimal electrical conductivity across extended usage periods. This specification prevents oxidation-related connection failures in humid environments.

Moreover, the cable incorporates tin-plated copper wire cores that ensure low electrical resistance for efficient signal transmission. The conductor configuration supports both high-speed data protocols and stable peripheral power delivery. The ABS (Acrylonitrile Butadiene Styrene) case construction provides impact resistance while maintaining lightweight portability characteristics.

Technical Specifications

Physical Characteristics

• Model Number: Ugreen UG-30701 / US154
• Cable Length: 15cm (5.9 inches / 0.15 meters)
• Color: Black
• Cable Type: OTG Adapter Cable
• Dimensions: Approximately 170mm x 17mm
• Weight: Lightweight portable design
• Connector Type Side 1: USB-C 3.1 Gen1 Male
• Connector Type Side 2: USB 3.0 Type-A Female
• Connector Orientation: Reversible USB-C connector

Electrical Performance

• USB Standard: USB 3.0 SuperSpeed / USB 3.2 Gen 1
• Data Transfer Rate: Up to 5Gbps (5000Mbps)
• USB-C Input Standard: USB-C 3.1 Gen1
• USB-A Output Standard: USB 3.0
• OTG Protocol: USB On-The-Go compliant
• Wire Core: Tin-plated copper conductors
• Conductor Type: Oxygen-free copper

OTG Circuit Components

• Pull-Down Resistor: 5.1kΩ (OTG identification)
• Capacitance: 10nf (OTG function support)
• OTG Functionality: Host mode switching for compatible devices
• Power Support: Peripheral power delivery through host device
• Protocol Detection: Automatic OTG mode recognition

Construction and Materials

• Housing Material: ABS (Acrylonitrile Butadiene Styrene) case
• Connector Plating: Gold-plated contacts (corrosion-resistant)
• Wire Core Material: Tin-plated copper
• Shielding: Multiple internal shielding layers
• EMI Protection: Aluminum foil shielding with braiding
• Strain Relief: Overmolded connector junctions
• Connector Quality: Gold-plated for reliable performance

Compatibility

• Laptop Support: MacBook Pro (2016-2019), MacBook Air (2018), Dell XPS 13/15, Samsung Notebook, Chromebooks
• Smartphone Support: Samsung Galaxy (S8/S9/S10/Note 8/9 series), LG (G5/G6/G7/V20/V30), Google Pixel (all generations), OnePlus (3T through 6)
• Additional Devices: Huawei Mate/P-series, Xiaomi devices, Motorola Moto Z series, HTC devices, Sony Xperia, Microsoft Lumia
• Peripheral Support: USB flash drives, external hard drives, keyboards, mice, game controllers, card readers, printers, cameras
• OTG Requirement: Device must support USB On-The-Go functionality
• Backward Compatibility: USB 2.0 and USB 1.1 devices supported

Features

• Plug and Play: No driver installation required
• Data Transfer Only: Designed for data transmission (not recommended for device charging)
• External Drive Note: Recommended for use with USB-C laptops rather than smartphones when connecting external hard drives
• Universal Standard: USB-IF compliant
• EMI Resistance: Advanced shielding prevents electromagnetic interference