Ugreen UG-50533 USB-A 3.0 to USB-C Adapter (Gray)

Ugreen UG-50533, designated as model US276, functions as a compact USB interface converter that enables USB Type-C device connectivity through legacy USB Type-A ports. This adapter features a USB 3.0 Type-A male connector on one end and a USB-C 3.1 Gen 1 female port on the opposite end. Built with an aluminum alloy housing, the UG-50533 incorporates a 56KΩ pull-up resistor for overcurrent protection. The device supports simultaneous data synchronization at speeds up to 5 Gbps and charging capabilities up to 3A current output.

USB 3.0 High-Speed Data Transfer

The Ugreen UG-50533 delivers theoretical maximum transfer speeds of 5 Gbps (equivalent to 625 MB/s or 200 MB/s in practical applications). This bandwidth represents a tenfold improvement over USB 2.0’s 480 Mbps limitation. Consequently, users can transfer a 1GB HD video file in approximately 5 seconds through USB 3.0 ports, compared to nearly one minute via USB 2.0 connections.

The adapter maintains backward compatibility with USB 2.0 and USB 1.1 standards. However, actual transfer speeds depend on the host port generation. When connected to USB 2.0 ports, performance drops to 480 Mbps regardless of the adapter’s capabilities. For optimal 5 Gbps operation, users must connect the UG-50533 to computers or devices equipped with USB 3.0, USB 3.1, or newer generation ports.

Port Conversion Functionality

The UG-50533 adapter transforms standard USB Type-A ports into USB-C female receptacles. This conversion enables users with older laptops, desktop computers, or peripherals to interface with modern USB-C devices without requiring full hardware upgrades. The USB Type-A male connector integrates directly into existing USB ports on legacy equipment.

The USB-C 3.1 Gen 1 female port accommodates any standard USB-C cable or device. Users can connect USB-C smartphones, tablets, external hard drives, flash drives, or Type-C earphones to the adapter. The reversible USB-C design eliminates orientation concerns during cable insertion, providing consistent connectivity regardless of cable rotation.

Fast Charging Support

The Ugreen UG-50533 supports charging output up to 9V/2A, delivering a maximum of 18W power delivery. Additionally, the adapter maintains compatibility with Qualcomm Quick Charge 3.0 and Quick Charge 2.0 protocols. The device regulates current output up to 3A for mobile device charging applications.

This charging capability allows users to power USB-C smartphones and tablets through USB-A wall chargers, car chargers, or laptop ports. For example, users can charge modern USB-C phones using existing USB-A power adapters without purchasing new charging equipment. However, actual charging speed depends on both the power source capacity and the connected device’s charging specifications.

Technical Specifications

General Information

• Model Number: UG-50533 / US276
• Product Type: USB Interface Conversion Adapter
• Color: Gray
• Dimensions: 35mm × 12mm (Length × Width)
• Weight: Ultra-lightweight portable design
• Warranty: 1-year manufacturer warranty

Connector Specifications

• Input Connector: USB 3.0 Type-A Male
• Output Connector: USB-C 3.1 Gen 1 Female
• USB Standard (Input): USB 3.0 / USB 3.1 Gen 1
• USB Standard (Output): USB-C 3.1 Gen 1
• Reversible Design: USB-C port features reversible insertion
• Connector Durability: Metal-reinforced connectors

Performance Characteristics

• Maximum Data Transfer Speed: 5 Gbps (625 MB/s theoretical)
• Practical Transfer Rate: 200 MB/s typical performance
• USB 2.0 Backward Compatibility: 480 Mbps when connected to USB 2.0 ports
• USB 1.1 Backward Compatibility: 12 Mbps when connected to USB 1.1 ports
• Performance Note: 5 Gbps speed requires USB 3.0 host port

Charging Specifications

• Maximum Charging Output: 9V/2A (18W)
• Current Support: Up to 3A
• Fast Charging Protocols: Quick Charge 3.0, Quick Charge 2.0 compatible
• Power Delivery: Supports USB Power Delivery negotiation
• Charging Protection: Integrated overcurrent protection

Electrical Protection

• Pull-Up Resistor: Standard 56KΩ resistor included
• Function: Prevents overcurrent and device damage
• Compliance: Meets USB Type-C specification requirements
• Circuit Protection: Regulates current flow between devices
• Safety Features: Protects both host and connected devices

Chipset and Processing

• Chipset Model: VIA Labs VL160
• Function: USB protocol conversion and signal processing
• Signal Integrity: Maintains stable data transmission
• Device Enumeration: Automatic device recognition
• Driver Requirements: None (plug-and-play operation)

Audio Support

• Audio Passthrough: Digital audio signal transmission
• Supported Devices: USB-C earphones and headphones
• Specific Compatibility: Xiaomi and Huawei USB Type-C noise-canceling earphones
• Operating System Support: Windows 10/11, Mac OS
• Audio Quality: Maintains digital audio fidelity