A network adapter is the computer’s interface for connecting to a network. It may be built into the computer, installed as an internal card, or attached externally—so there is no single appearance to look for. Ethernet adapters provide a wired connection; Wi-Fi adapters connect wirelessly. The adapter’s hardware handles the network connection, while its driver lets the operating system use it.
What does a network adapter look like?
It depends on where the networking hardware is installed. Microsoft describes adapters that are built into a device, installed inside it, or connected through USB. Many laptops and desktops have networking hardware built in, so there may be no separate adapter visible from the outside. Microsoft’s network setup guidance describes these forms.
As an Amazon Associate I earn from qualifying purchases.
- Built-in adapter: Integrated into the computer. A laptop with built-in Wi-Fi, for example, may have no removable Wi-Fi device to see.
- Internal adapter card: A card installed inside a desktop, such as a PCIe Ethernet card with one or more network ports.
- External adapter: A separate device that plugs into a port such as USB. Some provide wired Ethernet; others add wireless capability.
In Windows, “network adapter” can also refer to a software network interface, not just a physical part. Microsoft notes that an interface is typically represented by a physical Network Interface Card (NIC), but may also be software-only, such as a loopback interface. Microsoft’s network-interface overview explains the distinction.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
What does a network adapter do?
An adapter connects a computer to a network so it can communicate with other devices and services. A physical network interface handles the connection’s signals; in Windows, the NIC implements the physical layer, transceiver, and attached medium. A software device driver—called a miniport driver in Microsoft’s networking documentation—allows the operating system to control and use the hardware. Microsoft’s Windows network architecture overview describes the NIC and driver roles.
#1 Best Overall
- 𝐇𝐢𝐠𝐡-𝐒𝐩𝐞𝐞𝐝 𝐔𝐒𝐁 𝐄𝐭𝐡𝐞𝐫𝐧𝐞𝐭 𝐀𝐝𝐚𝐩𝐭𝐞𝐫 - UE306 is a USB 3.0 Type-A to RJ45 Ethernet adapter that adds a reliable wired network port to your laptop, tablet, or Ultrabook. It delivers fast and stable 10/100/1000 Mbps wired connections to your computer or tablet via a router or network switch, making it ideal for file transfers, HD video streaming, online gaming, and video conferencing.
- 𝐔𝐒𝐁 𝟑.𝟎 𝐟𝐨𝐫 𝐅𝐚𝐬𝐭𝐞𝐫, 𝐌𝐨𝐫𝐞 𝐒𝐭𝐚𝐛𝐥𝐞 𝐃𝐚𝐭𝐚 𝐓𝐫𝐚𝐧𝐬𝐟𝐞𝐫𝐬- Powered via USB 3.0, this adapter provides high-speed Gigabit Ethernet without the need for external power(10/100/1000Mbps). Backward compatible with USB 2.0/1.1, it ensures reliable performance across a wide range of devices.
- 𝐒𝐮𝐩𝐩𝐨𝐫𝐭𝐬 𝐍𝐢𝐧𝐭𝐞𝐧𝐝𝐨 𝐒𝐰𝐢𝐭𝐜𝐡- Easily connect your Nintendo Switch to a wired network for faster downloads and a more stable online gaming experience compared to Wi-Fi.
- 𝐏𝐥𝐮𝐠 𝐚𝐧𝐝 𝐏𝐥𝐚𝐲- No driver required for Nintendo Switch, Windows 11/10/8.1/8, and Linux. Simply connect and enjoy instant wired internet access without complicated setup.
- 𝐁𝐫𝐨𝐚𝐝 𝐃𝐞𝐯𝐢𝐜𝐞 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲- Supports Nintendo Switch, PCs, laptops, Ultrabooks, tablets, and other USB-powered web devices; works with network equipment including modems, routers, and switches.
Ethernet and Wi-Fi: two different connection types
| Type | How it connects | What to look for |
|---|---|---|
| Ethernet | Wired connection, typically through a cable plugged into an Ethernet port. | An Ethernet jack on the computer or adapter; internal and USB Ethernet adapters are available. |
| Wi-Fi | Wireless local-area network connection. | Built-in wireless hardware or a compatible wireless adapter. A computer with built-in wireless capability does not need a separate Wi-Fi adapter. |
Ethernet products vary in connector, port count, and supported speed. For example, Intel’s catalog lists its I226 family as supporting up to 2.5GbE, and includes I350 models with dual- or quad-port configurations and I210 products with RJ45 connectors. These are product specifications, not a guarantee of the speed a particular computer or network will achieve. Actual performance depends on the adapter and the rest of the connection. See Intel’s Ethernet adapter catalog for its listed product details.
How to check which adapters your computer recognizes
Use Device Manager
- Open Device Manager in Windows.
- Expand Network adapters to see the recognized adapter names.
- To check for wireless hardware, look for “wireless” in an adapter’s name, as Microsoft’s guidance suggests.
Windows labels and screens can vary by version. A missing Wi-Fi option does not by itself establish that the computer has no Wi-Fi hardware: it may lack a wireless adapter, or its driver may not be recognized or installed correctly. Check the computer or adapter manufacturer’s support information for model-specific troubleshooting.
Rank #2
- Connects a USB 3.0 device (computer/laptop) to a router, modem, or network switch to deliver Gigabit Ethernet to your network connection. Does not support Smart TV or gaming consoles (e.g.Nintendo Switch).
- Supported features include Wake-on-LAN function, Green Ethernet & IEEE 802.3az-2010 (Energy Efficient Ethernet)
- Supports IPv4/IPv6 pack Checksum Offload Engine (COE) to reduce Cental Processing Unit (CPU) loading
- Compatible with Windows 8.1 or higher, Mac OS
Use PowerShell for more detail
Microsoft documents Get-NetAdapter for basic adapter properties and Get-NetAdapterHardwareInfo for hardware information, including PCI capabilities and device properties. Run these in PowerShell:
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesGet-NetAdapter
Get-NetAdapterHardwareInfoSee Microsoft’s references for Get-NetAdapter and Get-NetAdapterHardwareInfo.
Rank #3
![BENFEI USB 3.0 to Ethernet Adapter, USB C to RJ45 Gigabit LAN (1000Mbps) Network Adapter, Compatible with MacBook/Pro/Air, Surface Pro, Windows 11/10/8/7, Mac OS [Aluminium Shell&Nylon Cable]](https://m.media-amazon.com/images/I/41fk9DHmdwL._SL160_.jpg)
- COMPACT DESIGN - The compact-designed portable BENFEI USB A/C to Ethernet adapter connects your computer or tablet to a router,modem or network switch for network connection. It adds a standard RJ45 port to your Ultrabook, notebook or Macbook Air for file transferring, video conferencing, gaming, and HD video streaming.
- SUPERIOR STABILITY - Built-in advanced IC chip works as the bridge between RJ45 Ethernet cable and your USB A/C devices. The driver-free installation with native driver support in Chrome, Mac, and Windows OS; The USB A/C Ethernet adapter dongle supports important performance features including Wake-on-Lan (WoL), Full-Duplex (FDX) and Half-Duplex (HDX) Ethernet, Crossover Detection, Backpressure Routing, Auto-Correction (Auto MDIX).
- INCREDIBLE PERFORMANCE - Supports full 10/100/1000Mbps gigabit ethernet performance over USB A/C's 5Gbps bus, faster and more reliable than most wireless connections. Link and Activity LEDs. USB powered, no external power required. Backward compatible with USB 2.0/1.1.✅ To reach 1Gbps, make sure to use CAT6 & up Ethernet cables.
- BROAD COMPATIBILITY - The USB A/C-Ethernet adapter is compatible with Windows 11/10/8.1/8/7/Vista/XP, Mac OSX 10.6/10.7/10.8/10.9/10.10/10.11/10.12, Linux kernel 3.x/2.6, Android and Chrome OS.Compatible with IEEE 802.3, IEEE 802.3u and IEEE 802.3ab. Supports IEEE 802.3az (Energy Efficient Ethernet).❌Do Not Support Windows RT. (NOT compatible with Nintendo Switch.)
- 18 MONTH WARRANTY - Exclusive BENFEI Unconditional 18-month Warranty ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely.
What to check before buying an adapter
First decide whether you need wired Ethernet, Wi-Fi, or an additional network interface. Then match the adapter to the computer and the network it will connect to.
- Form factor and connection: Check whether the computer has a compatible internal expansion slot or whether a USB adapter is the practical option.
- Connection type: Choose Ethernet for a wired connection or Wi-Fi if you need wireless networking.
- Operating-system and driver support: Confirm that the adapter supports your operating system and that an appropriate driver is available.
- Connector and port count: For Ethernet, check the connector type—such as RJ45—and how many ports you need.
- Speed requirements: Compare the adapter’s supported speeds with the computer, cable, network equipment, and internet or local-network service. A faster adapter alone cannot make the rest of the connection faster.
A PCIe Ethernet network adapter or internal Ethernet card is an option for a desktop that has a compatible free expansion slot and supported drivers. A USB network adapter is an alternative when the computer has a compatible USB port. Neither form is a universal fit; confirm compatibility before purchasing.
Quick Recap
Best Value
- Dual USB-A/C Port Design: This USB hub with ethernet adapter features dual connectors for both USB C and USB A devices, ensuring wide compatibility across laptops, tablets, and smartphones. It includes 1x Gigabit Ethernet port and 3x USB A 3.0 ports, all usable at the same time for smooth and efficient connectivity. 📌Note: When using USB-A to connect devices, please ensure the USB-C is securely attached to the USB-A connector.
- Stable Gigabit Ethernet Adapter: Get fast, wired Internet up to 1000Mbps with this USB C to ethernet adapter. Backward compatible with 10/100Mbps networks for flexible connectivity across various setups. Ideal for streaming, gaming, and large file transfers. 📌Note: Ensure the RJ45 connector is plugged in securely in the port and use CAT6 & above Ethernet cable is required to reach 1 Gbps.
- 5Gbps Data Transfer: Transfer large files, photos, and videos in seconds with this USB 3.0 hub supporting speeds up to 5Gbps—10× faster than USB 2.0. Backward compatible with USB 2.0 and 1.1 devices, this USB splitter expands one port into three for connecting keyboards, mice, and flash drives for everyday use. 📌Note: The three USB-A 3.0 ports share a total 5Gbps bandwidth.【NO HDMI port, NO USB-C data port, and NO PD charging】
- Plug and Play: Reliable USB to ethernet adapter ready to use in seconds. Instantly connects with USB-A and USB-C devices including MacBook Pro/Air, iPad Pro, iMac, Surface Laptops, Chromebook, XPS, tablets, Steam, and smartphones. Works with Windows, macOS, Linux, Chrome OS, and Android. 📌XP/Win7 may need driver. Older systems may not recognize this product due to its USB 3.0 chip. Please refer to the “Installation Manual” to manually download and install the driver.
- Durable & Portable Build: Made with sturdy aluminum alloy, this RJ45 to USB-C adapter delivers long-term durability, efficient heat dissipation, and stable performance for offices, corporate deployments, classrooms, and campus workstations—while its slim, portable form factor makes it ideal for business travel, educators, and mobile professionals.
Rank #4
- The Anker Advantage: Join the 65 million+ powered by our leading technology.
- Instant Internet: Connect to the internet instantly from virtually any USB-C 3.0 device, and enjoy stable connection speeds of up to 1 Gbps.
- Lightweight and Compact: The space-saving and portable design measures just over half an inch thick and weighs about the same as a AA battery.
- Premium Build: Features a sleek aluminum exterior and braided-nylon cable to complement the design of high-end devices.
- What You Get: PowerExpand USB-C to Gigabit Ethernet Adapter, welcome guide, 18-month worry-free warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
