Ultrabook laptops such as the Lenovo ThinkPad X1 Carbon are fantastic, but one of their downsides is that they're too thin for ethernet ports. This means that you're restricted to using a Wi-Fi connection, and you won't have the option to go wired — unless, of course, you get yourself a nifty ethernet adapter. Capable of transferring an ethernet connection through an open USB slot, these adapters are perfect for giving laptop users access to all the benefits of wired internet. There are tons of these adapters on the market. Still, overall, we feel that the StarTech USB Ethernet Adapter wipes the floor with the competition thanks to its incredibly useful features, all while maintaining a relatively low price.
Best Overall: StarTech USB Ethernet Adapter
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If you're looking for the best of the best in terms of performance, then you can't beat StarTech's top-notch ethernet adapter. It supports 10/100/1000 networks without any issues whatsoever, but the real value in this adapter lies with the special tech built within it. It's got onboard Checksum, support for Large Send Offload, Jumbo Frames, and Crossover Detection and Auto-Correction. In layman's terms, these features improve the stability of your connection, and also reduce the amount of CPU power that networking will draw on your device, making it perform better. The adapter itself is also designed to be lightweight, making it an excellent choice for travel.
Best Multipurpose: Anker 3-Port Ethernet Adapter
If the sound of an ethernet adapter that doubles as a USB port hub appeals to you, you'll love this adapter. Aside from supporting 10/100/1000 networks, it doesn't come with any special ethernet-related features to speak of. However, it does give you three more USB-A ports to use for peripheral devices and accessories. This pick is a great way to essentially get two products in one and make the most out of your money. The helpful green LED is also convenient, as it informs the user when everything is working properly.
Best Mid-Range: AmazonBasics USB Ethernet Adapter
If you're looking for something middle of the road, check out Amazon's AmazonBasics adapter. It supports 10/100/1000 networks and comes with the same CPU-assisting Checksum feature that the StarTech adapter does, but nothing else. However, the lack of more specialized features means that the price increase isn't too high, ultimately making it a balanced pick that will satisfy the average user.
Best Durability: Anker Aluminum Ethernet Adapter
If you want an adapter that can take a beating and still work without any problems, Anker's aluminum adapter will be an ideal choice. The sturdy metal frame can go through quite a lot before any damage, and the device supports 10/100/1000 networks, allowing it to compete with other adapters. However, it is rather pricey for what you get, so only choose it if durability is a concern.
Best Compact: TP-Link Ethernet Adapter
If you want the best adapter out there in terms of compactness, look no further than this adapter. While it lacks distinctive features beyond the basic 10/100/1000 network support, the USB cable does have the unique ability to fold up into the chassis of the adapter, ensuring it will take up very little space in your pocket, pouch, or bag.
Best Budget: Cable Matters USB Ethernet Adapter
If you simply want an adapter that supports 10/100/1000 networks and has no other bells, whistles, or qualities to speak of, then the Cable Matters USB Ethernet Adapter will be perfect for you. It only offers the bare minimum, but that may be fine for you if you're on a budget or just don't care about the specialties offered by the other adapters on this list.
Bottom line
Ethernet adapters are fantastic accessories that can give you the ability to use ethernet with your ultrabooks or other thin devices. They're not too pricey, and if you prefer wired internet over wireless, you'll get plenty of value out of them.
There are tons of different ethernet adapters out there, and each of them offers something that someone will find ideal. However, at the end of the day, we feel that the StarTech USB Ethernet Adapter is the clear-cut leader of the pack since it offers a ton of valuable features built into it that will improve connection stability and help your device conserve resources.
