Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteChoose by the capabilities your setup needs—not by the USB-C connector or the word “USB4” alone. Thunderbolt 4 sets a more specific baseline: Intel lists a minimum 40 Gbps PC speed, support for two 4K displays, and 32 Gbps PCIe data. USB4 products vary; Intel’s comparison lists a 20 Gbps minimum PC speed and one display with no minimum bandwidth, while some USB4 products offer higher capabilities. Check the exact specifications for the computer, dock or peripheral, and cable before buying.
What is the difference between Thunderbolt 4 and USB4?
USB4 and Thunderbolt 4 are related, but their names do not promise the same feature set. USB-IF says USB4 is based on the Thunderbolt protocol specification contributed by Intel. USB4 is a broad specification with products that can offer different capabilities; Thunderbolt 4 defines a clearer minimum set of capabilities for certified computers, accessories, and cables.
Intel’s comparison gives the following minimums. These are specification requirements, not independent performance test results.
| Capability | Thunderbolt 4 | USB4 | What to verify |
|---|---|---|---|
| Minimum PC speed | 40 Gbps | 20 Gbps | The actual computer, accessory, and cable rates; USB4 products can support more than the listed minimum. |
| Display baseline | Two 4K displays | One display, with no minimum bandwidth stated | Number of displays, resolution, refresh rate, and the computer-and-dock configuration. |
| PCIe data | 32 Gbps | Intel’s comparison does not state an equivalent USB4 minimum | Whether the specific computer and external device support the PCIe connection and performance you need. |
| Certification | Intel lists certification as mandatory for computers, accessories, and cables. | Capabilities vary by product; check its stated specifications and certification. | The product’s actual certification and full specifications. |
| Cable information | Intel identifies universal 40 Gbps cables up to 2 meters. | Link capability depends on the devices and cable. | The cable’s rating and length, as well as the host and peripheral capabilities. |
USB4 is not limited to 20 Gbps. USB-IF lists USB4 Specification v2.0, published April 2, 2026, and describes USB4 operation up to 80 Gbps over certified cables. Look for an explicit speed label—such as USB4 20Gbps or USB4 40Gbps—rather than treating “USB4” as a speed guarantee.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Which one should you choose?
Choose USB4 when the exact products meet your needs
USB4 may be sufficient for a monitor and everyday peripherals if the computer and accessory specify the speed, display support, and other features your setup requires. Confirm the specifications for each part of the connection instead of assuming all USB4 products implement the same capabilities.
Choose Thunderbolt 4 for a more predictable minimum feature set
Thunderbolt 4 is the clearer choice if you want its defined baseline of two 4K displays, 32 Gbps PCIe data, and 40 Gbps minimum PC speed. Certification requirements can also make it easier to identify products built to that standard. These minimums do not replace checking a particular computer’s configuration, display support, or accessory requirements.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Check carefully for external storage or PCIe devices
For a fast external drive, enclosure, or other PCIe-connected device, verify PCIe tunneling support and the product-specific performance for both the computer and the device. A USB-C port—or the USB4 name alone—does not establish that those capabilities are present.
Will USB4 work with a Thunderbolt dock?
USB-IF describes USB4 compatibility with Thunderbolt 3 hosts and devices, as well as USB 3.2 and USB 2.0 hosts and devices. When devices connect, capabilities scale to the best capability they share. That does not mean a USB4 computer supports every Thunderbolt 4 feature, or that every Thunderbolt dock will provide its full feature set with every USB4 computer.
Recommended Free Tools
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Check the computer and dock documentation for the specific connection you plan to use, including display count, resolution, refresh rate, data speed, and any PCIe devices. If the dock relies on a Thunderbolt feature, confirm that the computer supports that feature rather than relying on the USB-C shape of the port.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Do you need a Thunderbolt 4 cable?
Only if you need the capability the cable is rated to carry and the connected devices support it. Intel identifies universal 40 Gbps Thunderbolt 4 cables up to 2 meters. For USB4, verify the cable’s stated rating and length alongside the computer and peripheral specifications. A cable cannot add speed or features that a host or accessory lacks, and not every USB-C cable supports the same data rate, display capability, or charging level.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
How to check a complete setup before buying
- Check the computer’s port specifications. Find the exact port capabilities in the computer maker’s documentation; do not infer them from the USB-C connector shape.
- Check the dock or peripheral requirements. Confirm its supported connection standard, data speed, display configuration, and any PCIe support needed for your setup.
- Check the cable rating and length. Match the cable to the speed and features you need; verify certification where relevant.
- Compare the shared capabilities. Ensure the host, accessory, and cable all support the intended configuration. For displays, check the computer’s and dock’s supported number of screens, resolution, and refresh rate.
Official specifications and guidance
- USB-IF: USB4 — architecture, compatibility, mutual capability, and operation up to 80 Gbps over certified cables.
- USB-IF: USB4 Specification v2.0 — specification listing dated April 2, 2026.
- Intel: Thunderbolt Technology: A Universe of Possibilities — comparison of Thunderbolt 4 and USB4 baseline capabilities.
- Intel: Introducing Thunderbolt 4: Universal Cable Connectivity for Everyone — launch comparison of minimum requirements and cable length.
- USB-IF: USB4 Specification: Language, Product and Packaging Guidelines — guidance on USB4 performance labels and product communication.
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.
