USB Network Cards and Network Controllers
Last Updated: April 1, 2025
Description
USB Network Cards and Network Controllers are devices that facilitate network connectivity for computers and other devices through a USB interface. They enable the connection of a device to a network, allowing it to communicate with other devices and access shared resources.
Working Principle
USB Network Cards and Network Controllers operate by converting data from a computer into a format that can be transmitted over a network. They use the USB interface to connect to the host device, which provides a convenient and widely compatible means of adding network capabilities. These devices are useful because they allow for easy expansion of network connectivity without the need for internal installation, making them ideal for devices that lack built-in network interfaces or for users who need to add additional network ports.
Applications
USB Network Cards and Network Controllers are commonly used in scenarios where a device needs to be connected to a network but lacks an internal network interface. For example, they can be used to connect a desktop computer without a built-in Ethernet port to a wired network, or to add additional network interfaces to a laptop for redundancy or increased bandwidth.
Advantages over other Network Cards and Network Controllers
One of the main advantages of USB Network Cards and Network Controllers is their ease of use and portability. Unlike internal network cards, which require opening the device and installing hardware, USB network devices can be easily connected and disconnected, making them ideal for temporary setups or for use with multiple devices. Additionally, they provide a simple solution for adding network capabilities to devices that do not have available internal slots for expansion.
Limitations
USB Network Cards and Network Controllers have limitations in terms of data transfer speed and cable length. The USB specification limits cable lengths to 5 meters for full-speed devices and 3 meters for low-speed devices, which can restrict their use in larger setups. Additionally, the data transfer rates may not match those of internal network cards, particularly in high-performance environments.
Considerations
When considering USB Network Cards and Network Controllers, it is important to evaluate the initial cost, which can vary depending on the device's capabilities and brand. Operating expenses are generally low, as these devices do not require additional power sources. Durability can be a concern, as the physical connection can wear over time with frequent plugging and unplugging. Accuracy in data transmission is typically reliable, but performance can be affected by the quality of the USB connection and the network environment. Replacement and maintenance costs are generally low, but it is important to ensure compatibility with the host device's operating system and network requirements.
from ifm efector inc.
2-in-1: cloud connector and powerful controller. Plug & play access to the I/O level via Ethernet. Mountable in several positions. Powerful technology for demanding applications. Perfect IO-Link integration. From May 1st 2025, products produced in EU and Singapore have an import surcharge... [See More]
- Port Type: USB
- Operating Temperature: 55
- Protocol / Network: 10Base-T Ethernet
from ifm electronic gmbh
Cloud connector, visualisation and powerful controller in one unit. Programmable via CODESYS V3.5. Plug & play access to the I/O level via Ethernet. High protection rating IP 65 eliminates switching cabinets. Housing and technology designed for use in demanding environments [See More]
- Port Type: USB
- Protocol / Network: 10Base-T Ethernet
from ELMA Electronic Inc.
The SBX-DUB is a peripheral slot board equipped with four individual quad port USB 3.0 controllers, providing a total of 16 USB xHCI SuperSpeed channels. 12 USB 3.0 ports are available for rear I/O via the backplane connectors P3/P4. At the users choice, another set of 4 channels can be directed... [See More]
- Port Type: USB
- Host Bus: PCI
- Protocol / Network: Gigabit Ethernet
- Number of Ports: 1 to 4
from Eaton | Power Quality
The Power Xpert Gateway PDP cards allow you to keep an eye on your power distribution equipment, possibly avoiding costly events. Data can be accessed through standard on-board web pages, Power Xpert Software, or third-party software. In addition to viewing panel, sub-feed breaker, and branch... [See More]
- Port Type: RJ-45; USB
- Number of Ports: 4
- Protocol / Network: Fast Ethernet; Serial
- Operating Temperature: 0 to 40
from D-Link Systems, Inc.
Overview. The D-Link DWC-2000 Wireless Controller is a centralized Wireless LAN manager designed specifically for education, hospitality, and medium-to-large enterprises. Out of the box, it can manage up to 64 compatible D-Link Unified Wireless Access Points. With optional upgrade licenses, it can... [See More]
- Port Type: RJ-45; USB
- Technology: Wireless
- Protocol / Network: Gigabit Ethernet
- Operating Temperature: 0 to 40
from Radicom Research, Inc.
Radicom's LUHM300 Low-power USB 3.0 to 10/100/1000M Gigabit Ethernet adapter is a high performance and highly integrated device which enables a small form factor, and simple plug-and-play Gigabit Ethernet network connection capability for desktops, notebook PC's, Ultra-Mobile PC;s, docking stations,... [See More]
- Port Type: USB
- Protocol / Network: Gigabit Ethernet
from Eaton | Power Quality
The Power Xpert Gateway UPS card brings your Eaton Powerware UPS to your desktop. Monitor and manage your Eaton Powerware UPS remotely through real-time email alarms and data logging. Compatible with Eaton Uninterruptible Power Systems with X-Slot compatibility. Replaces the Power Xpert Gateway... [See More]
- Port Type: RJ-45; USB
- Number of Ports: 4
- Protocol / Network: Fast Ethernet
- Operating Temperature: 0 to 40
from D-Link Systems, Inc.
Overview. The D-Link DWC-1000 Unified Wireless Controller is a centralized wireless LAN manager developed specifically for campuses, branch offices, and small-to-medium businesses (SMBs). With the ability to manage up to six wireless access points (upgradable to 24) and a maximum of 96 wireless... [See More]
- Port Type: RJ-45; USB
- Technology: Wireless
- Protocol / Network: Gigabit Ethernet
- Operating Temperature: 0 to 40
from Radicom Research, Inc.
Radicom LUHM200 Low-power USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated device which enables a small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PC ’s, Ultra-Mobile PC ’s, docking... [See More]
- Port Type: RJ-45; USB
- Compliance: RoHS, FCC, IC, CE, IEC/EN60601-1-2, IEC/EN60601-1-11, EN60601-1
- Protocol / Network: 10Base-T Ethernet; Fast Ethernet
- Operating Temperature: 0 to 60
from Radicom Research, Inc.
Radicom LUHM200 Low-power USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated device which enables a small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PC ’s, Ultra-Mobile PC ’s, docking... [See More]
- Port Type: RJ-45; USB
- Compliance: RoHS, FCC, IC, CE, IEC/EN60601-1-2, IEC/EN60601-1-11, EN60601-1
- Protocol / Network: 10Base-T Ethernet; Fast Ethernet
- Operating Temperature: 0 to 60