The Ebyte EID101-A1131-H is an industrial high-speed USB 2.0 isolated HUB delivering 480Mbps over Type-C host interface, featuring 4 downstream ports (3x USB-A, 1x Type-C) with 500mA@5V isolated power output, complete electrical isolation, and -40°C to +85°C temperature range to eliminate ground loops, suppress surge noise, and protect PC hosts from damage in industrial and laboratory testing.
Key Features & Advantages
- True High-Speed USB 2.0 Electrical Isolation (Up to 480 Mbps): Provides physical galvanic isolation between host PC and downstream peripherals, supporting full 480 Mbps high-speed data transmission without packet loss or jitter.
- 4-Port Versatile Expansion (3x USB-A + 1x Type-C): Expands a single Type-C host port into four downstream interfaces (three standard USB-A and one modern Type-C) with built-in isolated 500mA@5V (2.5W Max) DC power delivery.
- Elimination of Ground Loops & Common-Mode Noise: Effectively cuts off ground loop currents, suppresses high-voltage surges, and prevents communication disconnection caused by ground potential differences between industrial equipment and PCs.
- Wide Industrial Operating Temperature (-40°C to +85°C): Built with industrial-grade components, supporting external DC 5V Type-C auxiliary power and individual LED status indicators for real-time link diagnostics in harsh environments.
Core Specifications
| Parameter | Specification / Value |
|---|---|
| Product Model | EID101-A1131-H |
| USB Standard & Speed | USB 2.0 High Speed (Up to 480 Mbps), Backward Compatible with Full/Low Speed |
| Host Uplink Interface | Type-C (USB Data Communication Port) |
| Auxiliary Power Interface | Type-C (DC 5V Auxiliary Power Input) |
| Downlink Output Ports | 4 Ports: 3x USB-A + 1x Type-C |
| Isolated Power Output | 500 mA @ 5V (2.5W Max) |
| Operating Temperature | -40 deg C to +85 deg C |
| Status Indicators | Red LEDs (Power & Host Link) | Green LEDs (Downstream Port Active) |
| Product Dimensions | 68 * 63 * 18 mm |
Product Selection Guide
Notice for Selection: EID101-A1131-H provides high-speed 480Mbps USB 2.0 isolation with 4-port expansion (3x USB-A + 1x Type-C). For high-power downstream USB peripherals exceeding 500mA total load, connect an external DC 5V supply to the auxiliary Type-C power input port.
| Model SKU | Isolation Type | Data Speed | Host Port | Downstream Ports | Isolated Output | Dimensions |
|---|---|---|---|---|---|---|
| EID101-A1131-H | Full Galvanic USB Isolation | USB 2.0 High Speed (480 Mbps) | Type-C (Host + Aux Power) | 3x USB-A + 1x Type-C | 500mA @ 5V (2.5W Max) | 68 * 63 * 18 mm |
| Standard USB HUB (Non-Isolated) | No Isolation (Shared Ground) | USB 2.0 (480 Mbps) | USB-A / Type-C | 4x USB-A | Shared Host Bus Power | Various |
Industrial Installation & Wiring
The EID101-A1131-H is housed in a compact, durable industrial enclosure measuring 68*63*18mm. Plug the primary Type-C host cable into your computer's USB port (Red indicator illuminates). For applications driving multiple peripherals or requiring steady current output, connect a standard DC 5V Type-C auxiliary power adapter to the Aux Power port. Connect downstream instruments, programmers, analyzers, or debuggers to the 3x USB-A and 1x Type-C isolated ports (Green indicators illuminate upon connection).
Practical Application Scenarios
1. Industrial Automated Test Equipment (ATE) & High-Voltage Lab Testing
In high-voltage motor testing benches, inverter evaluation rigs, and automated manufacturing test fixtures, severe ground potential offsets and inductive transient surges can damage PC motherboards. Integrating the EID101-A1131-H provides complete galvanic barrier isolation, protecting engineer workstations while maintaining real-time 480 Mbps USB data acquisition from oscilloscopes, logic analyzers, and multimeters.
2. Embedded Firmware Programming & Multi-DUT Debugging
Embedded hardware engineers frequently connect multiple debug adapters (JTAG, SWD, ST-Link, J-Link, USB-to-UART debuggers) simultaneously. The 4-port expansion on the EID101-A1131-H enables simultaneous multi-board flashing and serial monitoring without ground loop interference, preventing device disconnection caused by shared ground currents across target boards.
3. High-Fidelity USB Audio DACs & Precision Measurement Instrumentation
Switching power supply noise and PC motherboard ground ripple can infiltrate sensitive analog audio stages and high-resolution sensor digitizers. Utilizing the EID101-A1131-H decouples the dirty PC ground plane from high-end USB audio converters and laboratory data acquisition units, eliminating audible hum and measurement baseline drift.
4. Medical Equipment & High-Reliability Cleanroom Instrumentation
In medical testing devices, bio-signal monitoring setups, and cleanroom sensor interfaces, electrical isolation is essential for signal integrity and equipment safety. The EID101-A1131-H ensures high-speed, noise-free USB data connectivity across wide -40°C to +85°C temperatures, preventing external electrical noise from corrupting critical sensor data streams.
FAQ Section
1. Does the EID101-A1131-H require external drivers or software installation?
No, the EID101-A1131-H is fully plug-and-play and driverless. It utilizes standard USB hub protocols natively supported by Windows, macOS, Linux, and Android, enabling immediate operation upon plugging into the host Type-C port.
2. When should I connect external DC 5V power to the auxiliary Type-C port?
While the hub operates from host USB power for low-power peripherals, connecting an external DC 5V Type-C power supply is recommended when driving multiple active USB devices, high-speed flash drives, or external debugging dongles that draw close to the maximum 500mA isolated current threshold.
3. Is the EID101-A1131-H backward compatible with USB 1.1 and USB 2.0 Full-Speed devices?
Yes, the isolated hub fully supports automatic speed negotiation and is 100% backward compatible with USB 2.0 High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) legacy peripherals such as serial converters, mice, and firmware programmers.
4. What do the LED status indicators on the module signify?
The module features intuitive status LEDs: the Red LED indicates active connection to the host PC and auxiliary DC 5V power supply, while individual Green LEDs illuminate when downstream USB devices are successfully linked to ports 1 through 4.
