2.5 Gbps USB Network Adapter
Highlights
- 2.5 Gbps Ethernet over USB 3.1 – fast data transfer for demanding applications
- Realtek RTL8156BG chipset with native driver support for Linux, macOS and Windows
- Compact DIN-rail enclosure (2 TE) for industrial environments
- Flexible: USB bus-powered or external supply (9-24V DC)
- Backward compatible to 1000/100/10 Mbps and USB 2.0/1.1
- Jumbo Frames up to 16,000 bytes for maximum efficiency
The USB25GHS expands industrial PCs with a fast 2.5 Gbps Ethernet interface. Ideal for large data volumes, NAS connection, image data transfer and UHD video. Compact DIN-rail enclosure with USB bus power or external supply.
Model
The USB25GHS expands industrial PCs, embedded systems and workstations with a fast 2.5 Gbps Ethernet interface. The compact DIN-rail enclosure is suitable for installation in control cabinets and industrial environments.
Technical Highlights
- 2.5 Gbps Ethernet over USB 3.1 – ideal for large data volumes
- Realtek RTL8156BG with native driver support for all common operating systems
- Automatic driver installation under Windows directly from the adapter
- Backward compatible to 1G/100M/10M Ethernet and USB 2.0/1.1
- Jumbo Frames up to 16,000 bytes for efficient transfer of large files
- Wake-on-LAN for remote management
- Two status LEDs for connection and activity indication
Application Areas
- Fast NAS connection for industrial PCs
- Image data transfer from cameras and image processing systems
- UHD video streaming and recording
- Network upgrade for older systems without 2.5G support
- Backup network connection for critical systems
| Property | Value |
|---|---|
| Model | USB25GHS |
| Ethernet Speeds | 10 Mbps, 100 Mbps, 1000 Mbps, 2500 Mbps (autonegotiation) |
| Ethernet Standards | 10Base-T, 100Base-TX, 1000Base-T, 2.5GBase-T |
| USB Interface | USB 3.1 Type-B, backward compatible to USB 2.0, USB 1.1 |
| Chipset | Realtek RTL8156BG |
| IEEE Compliance | 802.3i, 802.3u, 802.3ab, 802.3bz, 802.3x, 802.1Q |
| Jumbo Frames | Up to 16,000 bytes |
| Wake-on-LAN | Yes |
| Power Supply | USB bus-powered or external 9-24V DC |
| Indicators | 2 status LEDs |
| Driver Support | Linux, Windows, macOS (native or via Realtek driver) |
| Not compatible with | Windows RT |
| Enclosure | DIN-rail enclosure (ABS) per DIN 43880 |
| Mounting | DIN rail (EN 50022) |
| Dimensions | 70 x 80 x 35 mm (W x H x D), 2 TE |
| Weight | 40 g |
| Operating Temperature | -10°C to +70°C |
| Humidity | 5% to 90% (non-condensing) |
| MTBF | 10,000 hours |
| CE | Yes |
| RoHS | EN 50581 |
- USB25GHS network adapter
- USB Type-A connection cable (30 cm)
Your Benefits
2.5 Gbps data transfer
2.5× faster than Gigabit Ethernet over existing Cat5e cabling – no rewiring needed.
Plug & Play driver installation
Linux and macOS support the Realtek RTL8156BG natively. Windows 10/11: automatic driver installation directly from the adapter.
Industrial DIN-rail enclosure
DIN rail (EN 50022), IP30, 2 TE width – fits directly beside other LyconSys modules in the control cabinet.
Flexible power supply
USB bus power for desktop systems or external 9-24V DC for embedded systems with limited USB power output.
FAQ
For a 2.5G connection you need a 2.5G-capable switch or router on the other end and a Cat5e cable (for short distances) or better Cat6/Cat6a cable. The USB25GHS is backward compatible – if your infrastructure only supports 1G, it connects automatically at 1 Gbps.
2.5G Ethernet works with existing Cat5e cabling up to about 100 meters. For optimal performance and future-proofing we recommend Cat6 or Cat6a cable. Special 2.5G cables do not exist – the standard was deliberately designed so existing infrastructure can be used.
In most cases no. Linux and macOS support the Realtek RTL8156BG natively. Windows 10/11 recognizes the adapter and loads drivers automatically from the adapter or via Windows Update. Only with older Windows versions or special requirements must drivers be installed manually from the Realtek website.
Yes, the adapter is backward compatible to USB 2.0 and USB 1.1. However, Ethernet speed is then limited to about 300-400 Mbps (USB 2.0 limit). For full 2.5 Gbps a USB 3.0 or USB 3.1 port is required.
Yes, you can operate multiple USB network adapters on one system. Each adapter appears as separate network interface. This is useful for network separation, routing or redundant connections.
2.5G Ethernet is the ideal compromise: It uses existing Cat5e cabling (no rewiring needed), is cheaper than 10G, and yet offers 2.5× the speed of Gigabit. For most industrial applications this is sufficient.
The adapter can be operated via USB bus power (typically on desktop PCs). If the USB port does not supply enough power (e.g. on some embedded systems), an external supply via the 9-24V DC input can be used instead.
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