Sipolar, a trusted leader in the R&D and manufacturing of industrial USB hubs for over 15 years, is proud to introduce our latest innovation: the AT-4A20M3 Industrial 4-Port USB 2.0 Hub. Built with durability, safety, and performance in mind, this new model is engineered to meet the demanding needs of modern industrial applications—from factory automation to embedded systems and beyond.
Whether you’re powering sensors, connecting peripherals, or transferring data in electrically noisy environments, the AT-4A20M3 delivers uncompromising reliability and protection.
Key Features & Benefits
🔌 True Electrical Isolation
The AT-4A20M3 features 3KV isolation for both USB data and power, ensuring your connected devices and host system are protected from ground loops, voltage surges, and electrical interference. This makes it ideal for use in industrial control, medical equipment, and test & measurement setups.
⚡ Dual Power Supply Modes for Maximum Flexibility
Unpowered Mode: Supports up to 0.6A total output—perfect for low-power devices in field applications.
Powered Mode: With an external 9–24V DC input (via locking industrial terminal), each port delivers up to 1A, with a total power budget of ≤20W.
Built-in overcurrent and short-circuit protection ensures safe operation at all times.
🛡️ Rugged & Industrial-Grade Design
ESD protection Class 3 (Contact ±6KV, Air ±8KV)
Wide operating temperature: -25°C to 80°C
Humidity tolerance: 5% to 90% RH
Reliable performance at altitudes up to 2,000 meters
📦 Versatile Mounting Options
The compact design (93x70x34.8mm) supports both DIN-rail and wall-mount installation, making it easy to integrate into control cabinets, workstations, or embedded systems.
💻 Wide System Compatibility
Plug-and-play support for:
Windows (XP to 11)
macOS 10.12 and above
Linux & Ubuntu 16.04+
📊 Visual Status Indicators
Red LED: Power status
Blue LED: Data transmission activity
Who Is It For?
The AT-4A20M3 is ideal for:
Industrial automation engineers
Embedded system integrators
Test & measurement professionals
Medical device manufacturers
Any application requiring reliable, isolated USB connectivity
Why Choose Sipolar?
With 15 years of experience in industrial hub design and manufacturing, Sipolar is committed to quality, innovation, and customer satisfaction. Every product is engineered to withstand the toughest environments while delivering consistent, high-performance results.
Ready to Upgrade Your Connectivity?
Contact us today to learn more about the AT-4A20M3 or to request a sample for testing.
Visit our website or email our sales team to get started.
