Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
Digi EP-USB-4-D25 Edgeport Serial Hub - External USB Type A - 4-Port - Linux/PC Compatible
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Product Overview
The Digi Edgeport Serial Hub (EP-USB-4-D25) is an external USB-to-serial connectivity solution designed to expand legacy serial device support on modern Linux and PC systems. This compact hub provides four external serial ports through a single USB Type A host connection, enabling reliable data communication for industrial, point-of-sale, networking, and laboratory equipment that requires serial interfaces.
Built with Digi's proven Edgeport technology, this hub delivers stable serial communication without requiring internal expansion cards or complex driver configurations. The external form factor makes installation straightforward—simply connect the included USB cable to an available host port, and the hub is ready to support multiple serial devices simultaneously. This solution is ideal for environments where maintaining legacy serial equipment is necessary while transitioning to modern computing platforms.
Technical Overview
The Edgeport Serial Hub operates as a USB 2.0 compliant device, providing full-speed data transfer capabilities suitable for most serial communication requirements. The hub converts USB signals to four independent RS-232 serial ports, each capable of supporting standard serial communication protocols at configurable baud rates. This technical architecture ensures compatibility with a wide range of serial devices including printers, scanners, industrial controllers, and diagnostic equipment.
Driver support includes native compatibility with major Linux distributions and Windows operating systems, eliminating the need for additional software in most deployment scenarios. The hub's external design incorporates robust signal conditioning to maintain data integrity across all four ports, even when operating multiple devices simultaneously. This makes it suitable for environments where reliable serial communication is critical to operational continuity.
Relevant factors for this section include Host Interface, Platform Supported, Number of Serial Ports (External). When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The Digi Edgeport Serial Hub delivers several practical advantages for organizations maintaining legacy serial infrastructure. By providing four serial ports through a single USB connection, it reduces the need for multiple host adapters or internal expansion cards, simplifying deployment and reducing hardware costs. The external form factor enables flexible placement near serial devices, minimizing cable runs and improving signal quality.
Legacy Device Support
Enables continued use of serial-based equipment with modern computing platforms, extending the lifecycle of valuable industrial and commercial assets.
- Four independent serial ports
- RS-232 compatibility
- Configurable baud rates
Simplified Deployment
The external design requires no internal hardware installation, making it suitable for environments where opening computer cases is impractical or prohibited.
- USB plug-and-play operation
- Compact footprint
- No internal expansion slots required
Cross-Platform Compatibility
Native driver support for Linux and Windows systems ensures reliable operation across diverse IT environments without additional software investment.
- Linux distribution support
- Windows compatibility
- Standard USB connectivity
Deployment / Use Cases
The Edgeport Serial Hub is particularly valuable in environments where legacy serial devices must interface with modern computing systems. Industrial facilities can use it to connect programmable logic controllers, sensor arrays, and monitoring equipment to Linux-based control systems or Windows workstations. Retail and hospitality businesses benefit from maintaining serial receipt printers, cash drawers, and customer display systems while upgrading point-of-sale hardware.
In laboratory and medical settings, the hub enables connection of diagnostic instruments, data loggers, and analytical equipment to contemporary computers for data collection and analysis. Network operations centers can utilize it for console access to networking equipment, while manufacturing environments can maintain communication with legacy machinery controls. The hub's four-port design allows multiple devices to share a single host connection, optimizing workspace organization and reducing cable clutter.
Industrial Automation
Connect PLCs, HMIs, and sensor networks to modern control systems without replacing existing serial-based equipment.
Retail & Hospitality
Maintain compatibility with serial receipt printers, cash drawers, and customer displays during point-of-sale system upgrades.
What's in the Box
Each Edgeport Serial Hub package includes all necessary components for immediate deployment.
Highlights
- Four external serial ports for legacy device connectivity
- USB Type A host interface for simple plug-and-play operation
- Compatible with Linux and PC (Windows) operating systems
- External form factor requires no internal installation
- Compact design suitable for desktop or rack deployment
- Includes 1-meter USB A to B cable for immediate use
- Manufactured by Digi International with Edgeport technology
- Country of origin: India
Specifications
| Specifications | |
|---|---|
| Manufacturer | Digi International |
| Manufacturer Part Number | EP-USB-4-D25 |
| Brand Name | Digi |
| Product Line | Edgeport |
| Product Name | Edgeport Serial Hub |
| Product Type | Serial Hub |
| Technical Information | |
| Host Interface | USB Type A |
| Platform Supported | Linux,PC |
| Interfaces/Ports | |
| Number of Serial Ports (External) | 4 |
| Physical Characteristics | |
| Form Factor | External |
| Miscellaneous | |
| Package Contents | Edgeport Serial Hub 1 Meter A to B USB Cable |
| Country of Origin | India |
FAQ
How many serial devices can I connect to this Digi Edgeport hub?
The Digi Edgeport Serial Hub (EP-USB-4-D25) provides four independent external serial ports, allowing you to connect up to four serial devices simultaneously through a single USB connection to your host computer. Each port supports standard RS-232 communication, making it suitable for connecting printers, scanners, industrial controllers, or other serial equipment that requires individual port assignments.
What operating systems are compatible with this serial hub?
This Edgeport Serial Hub is compatible with Linux distributions and PC systems running Windows operating systems. The hub uses standard USB communication protocols that are natively supported by most modern Linux kernels and Windows versions, typically requiring no additional driver installation for basic functionality. This cross-platform compatibility makes it suitable for mixed-IT environments.
Does this hub require external power or is it bus-powered?
The Edgeport Serial Hub is bus-powered through the USB connection, drawing power directly from the host computer's USB port. This eliminates the need for an external power adapter, simplifying deployment and reducing cable clutter. The hub's power design is optimized for reliable operation with all four serial ports active, though extremely power-hungry serial devices may require their own power sources.
What type of USB connection does this hub use?
This Edgeport hub connects to host computers using a USB Type A interface. The included 1-meter cable has a USB Type A connector for the computer side and a USB Type B connector for the hub side. This is a standard USB 2.0 implementation that provides sufficient bandwidth for multiple serial communications while maintaining compatibility with virtually all modern computers.
Can I use this hub with industrial equipment or only office devices?
The Edgeport Serial Hub is designed for both office and industrial applications. Its robust construction and reliable signal conditioning make it suitable for connecting to industrial controllers, PLCs, sensor arrays, and manufacturing equipment that use serial communication. The hub maintains data integrity even in environments with electrical noise, though for extreme industrial conditions, additional signal protection may be advisable.
What is included in the package with this serial hub?
Each Edgeport Serial Hub package includes the hub unit itself and a 1-meter USB A to B cable for connecting to your host computer. No additional cables, power adapters, or software are required for basic operation. The hub is ready for immediate deployment—simply connect the USB cable between your computer and the hub, then connect your serial devices to the four available ports.
| Qty | Price | Available |
|---|
