- Room 525,Building 7D,Hengda Shishang Huigu,Dalang Street,Longhua District,Shenzhen,China,518109
The A-4A30M4 is a 4-port USB 3.0 hub designed for reliable USB expansion with flexible power options. It features one Type-C 3.0 upstream port and four USB-A 3.0 downstream ports, supporting data transfer rates up to 5Gbps. The hub can power low-power devices even without an external power supply.
With two optional power input ports—DC 5.5×2.1mm and 3.81mm 2-pin terminal—either port can be used for flexible installation. The aluminum alloy enclosure provides durability and efficient heat dissipation, while the LED indicators clearly show data and power status. Output overcurrent protection, short-circuit protection, and Class 4 ESD protection help ensure stable operation in demanding environments. The compact ear-mount design makes it suitable for space-limited installations.
4-port USB 3.0 hub with 1× Type-C 3.0 upstream and 4× USB-A 3.0 downstream ports
High-speed data transfer rate up to 5Gbps
Two optional power input ports: DC 5.5×2.1mm and 3.81mm 2-pin terminal; either port can be used
Wide DC input range: 9–24V
Per-port output: 5V/1A max; total output power ≤20W
Output overcurrent protection and output short-circuit protection
Aluminum alloy enclosure for durability and efficient heat dissipation
LED indicators: blue for data, red for power
ESD protection: Class 4, contact 8KV, air 15KV
Compact ear-mount design for easy installation
Supports Windows 7/8/10/11 (x86 & x64), Mac OS 10.12 and above, Linux, Ubuntu 16.04 and above
Wide operating temperature: -25 to 80℃
| Category | Item | Specification |
|---|---|---|
| Product Information | Product Name | 4-Port USB 3.0 Hub |
| Product Information | Model | A-4A30M4 |
| Product Information | PCB Version | V1.0 |
| Interfaces | Power Input | DC 5.5×2.1mm / 3.81mm 2-pin terminal (either port can be used) |
| Interfaces | Data Upstream | Type-C 3.0 |
| Interfaces | Data Downstream | USB-A 3.0 × 4 |
| Performance | Transfer Rate | Up to 5Gbps |
| Electrical | Input Voltage | DC 9–24V |
| Electrical | Output Rated Voltage | 5.0V ±5% |
| Electrical | Max Output Current per Port | 5V/1A |
| Electrical | Total Output Power | ≤20W |
| Protection | Output Protection | Overcurrent protection, short-circuit protection |
| Protection | ESD | Class 4: contact 8KV, air 15KV |
| Indicators | LED Status | Blue for data, red for power |
| System Support | OS Compatibility | Win7, Win8, Win10, Win11 (x86 & x64); Mac OS 10.12 and above; Linux, Ubuntu 16.04 and above |
| Environment | Operating Temperature | -25 to 80℃ |
| Environment | Operating Humidity | RH5%–RH90% |
| Environment | Operating Altitude | Below 2,000 m |
| Physical | Dimensions | 78 × 58 × 24 mm |
| Physical | Material | Aluminum profile |
| Physical | Mounting | Ear-mount |
