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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →You can add Thunderbolt to some desktop PCs with a motherboard-supported PCIe Thunderbolt add-in card (AIC). The card must be approved for your exact motherboard model and revision; a free PCIe slot or USB-C port alone does not make a PC Thunderbolt-compatible. Check the card’s supported-board list and both manuals for the required slot, motherboard header, firmware settings, display wiring and drivers before buying.
Check whether your motherboard supports a Thunderbolt add-in card
- Identify the exact board. Read the model and revision printed on the motherboard or shown in your system information. A similar model name is not enough.
- Check the card maker’s compatibility list. Confirm that exact board and revision, not just the motherboard brand. For example, GIGABYTE says its GC-MAPLE RIDGE card is compatible with listed GIGABYTE motherboards that have a Thunderbolt header, and that support varies by board specification. See GIGABYTE’s GC-MAPLE RIDGE compatibility information.
- Verify the slot and header. Look in the motherboard manual for the Thunderbolt header name and the recommended PCIe slot. The card manual controls the installation details: ASUS notes that the recommended slot can vary by board, while GIGABYTE’s GC-TITAN RIDGE manual illustrates installation in a PCIEX4 slot. A physically fitting slot does not by itself establish compatibility.
- Check firmware, drivers and operating-system support. Confirm the board has the required BIOS or firmware support and that drivers are available for your operating system. Menu names and settings vary by motherboard.
- Plan display and power connections. If you want video to pass through the Thunderbolt ports, check whether your discrete graphics card must connect to a DisplayPort input on the AIC. Also confirm any auxiliary power or other cables required by the specific card.
- Confirm the generation and card revision. The product name or USB-C connector shape does not establish the Thunderbolt generation or the capabilities you need. Verify the card’s revision and specifications on the manufacturer’s current product and support pages.
Choose a card by the supported combination, not just the port
These official product examples show why the board-card pairing and wiring matter. Their specifications are vendor claims, not independent performance tests.
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| Card | What the manufacturer documents | What to confirm for your PC |
|---|---|---|
| ASUS ThunderboltEX 4 | PCIe 3.0 installation, a bundled 14-1-pin cable to the motherboard’s TB_HEADER, and a card-specific support list. ASUS installation and support guidance | Exact supported board, recommended slot, BIOS setting, driver, display connection and any required power wiring. |
| ASRock Thunderbolt 4 AIC R2.0 | PCIe Gen3x4 interface, two Thunderbolt 4 Type-C ports, a TBT header and a stated 40Gbps bi-directional bandwidth per channel. ASRock product specifications | Supported motherboard list, BIOS and hardware behavior, slot and header requirements. |
| GIGABYTE GC-MAPLE RIDGE | A Thunderbolt 4 AIC with a certified motherboard list and a Thunderbolt-header requirement. GIGABYTE product and compatibility information | Exact board and revision, slot, operating-system support and current product availability. |
| GIGABYTE GC-TITAN RIDGE | A Thunderbolt 3 card; the manual connects card connector J1 to motherboard THB_C and illustrates a PCIEX4 slot. GIGABYTE installation manual | Card revision, supported-board list, BIOS, slot, drivers and operating-system support. |
ASRock’s manual cautions: “However, the BIOS and hardware design of your motherboard may affect the function of Thunderbolt™ 4 Port on this card.” That is why a listed or explicitly supported motherboard-card combination is more useful than assuming a card will work wherever it fits. ASRock Thunderbolt 4 AIC R2.0 manual and specifications.
Install the card using its exact manual
Installation is card- and motherboard-specific. Treat the following as the documented ASUS ThunderboltEX 4 example, not a universal procedure; use your own card and board manuals if they differ. ASUS’s quick-start guide calls for shutting down the PC, opening the chassis, inserting the card into the model-recommended PCIe 3.0 slot, then connecting the bundled 14-1-pin Thunderbolt header cable between the card and motherboard TB_HEADER. ASUS ThunderboltEX 4 installation guidance
#1 Best Overall
- Intel certified Thunderbolt 5 add-on card
- Dual USB Type-C ports support up to 130 watts total of fast charging, and up to 96W for one device
- Up to five Thunderbolt devices can be daisy-chained
- Up to 120 Gbps of bandwidth for superfast data transfers and video output
- DisplayPort 2.1 port supports up to three 8K 60 Hz displays with DSC
- Shut down the PC and follow the card manual’s safety and chassis-access instructions.
- Fit the card into the PCIe slot specified for your motherboard-card combination.
- Connect the required Thunderbolt header cable to the matching motherboard header, following the connector orientation in the manuals. Do not substitute a similarly shaped header.
- Connect any auxiliary power or display cables the card manual requires. For ASUS’s documented discrete-GPU setup, a Mini DisplayPort cable runs from a DisplayPort output on the graphics card to the ThunderboltEX 4 card’s DisplayPort input.
- Close the chassis, start the PC and follow the board maker’s firmware and driver setup instructions.
Enable firmware support and install drivers
After the hardware is installed, follow the exact motherboard’s BIOS instructions. ASUS’s ThunderboltEX 4 guidance describes entering BIOS, enabling Thunderbolt/USB4 support in a model-specific menu, saving the setting, restarting and installing the card driver. The menu path and available options are not universal, so do not assume the ASUS setting name or location applies to another board.
If the card appears installed but its ports do not work as expected, recheck the supported-board list, header connection, designated PCIe slot, required firmware setting, driver, and any display or auxiliary-power wiring against the manuals for your exact products. A USB-C port without the correct Thunderbolt hardware and configuration is not a substitute.
Quick Recap
Best Value
- HIGH-PERFORMANCE USB CARD: Upgrade or expand a desktop/server's USB connectivity by adding four external USB Type-C 10Gbps ports and one internal USB Type-A 10Gbps port via a single PCI Express x4 connection
- FAST DATA TRANSFER: ASM3142 controller supports USB 3.2 transfer speeds of up to 10Gbps; Ideal for transferring large files or editing high-resolution photos/videos on external storage devices
- OPTIONAL POWER: USB PCIe expansion card with SATA power supplies additional power to the USB ports (when motherboard power is insufficient), providing up to 5V 3A (15W) per USB Type-C port and 5V 1.5A (7.5W) on the USB Type-A port
- COMPATIBILITY: Drivers auto-install in most OS's including Windows 8 & up, macOS, and Linux; Works with all hardware platforms such as Intel, AMD, and Apple Silicon that have a PCI Express x4/x8/x16 slot; Does not support DP-Alt Mode/USB Power Delivery
- THE IT PRO'S CHOICE: Designed and built for IT Professionals, this 5-port USB-C PCIe Card is backed for 2-years, including free lifetime 24/5 multi-lingual technical assistance
Rank #4
- Host Interface: PCI Express x4 slot provides high-speed connectivity for seamless integration with your workstation
- Thunderbolt 4 Compatible: Features advanced Thunderbolt 4 technology for fast data transfer and multi-protocol support
- Thunderbolt 3 Compatible: Backward compatible with Thunderbolt 3 devices ensuring versatility with existing peripherals
- Data Transfer Rate: Delivers up to 5 GB/s transfer speeds for efficient data movement between devices
- Operating System Supported: Compatible with Windows 11 Pro x64 and Windows 10 Pro x64 operating systems
Rank #3
- 【7-Ports Expansion Card】Fanblack PCI-E expansion card provides 7 external USB 3.2 Gen 2 Ports (4 USB Type-A and 3 USB Type-C Ports) for your computer. You can connect a keyboard, mouse, external hard drives, CD/DVD drives, webcams, USB printers, scanners, game controllers, USB VR, digital cameras, etc
- 【10Gbps Transmission Rate】One USB Type-C port and three USB Type-A ports share 10Gbps bandwidth, and the rest three ports share another 10Gbps bandwidth, with a total bandwidth of up to 20Gbps. Each port supports transmitting data at a rate of up to 10Gbps when used solely. Note: The USB expansion card only supports data transfer， Not PD fast charging and video signal transfer (DP, HDMI, VGA display conversion) and USB-C Thunderbolt protocol
- 【Widely Compatibility】The card is compatible with Windows 7/8/10/11 (32/64 bit) and Mac OS 10.8.2 and above. Perfect for HP windows 11 desktop,Dell 8950,MacPro 4.1/5.1,Lenovo P520. Note: Windows XP/Vista/7, Server, requires driver installation, Windows 10/11 and Mac OS and Linux don't need drivers. If your computer can not be recognized by windows 11 or Mac os with any driver, Please contact us anytime
- 【Stable and Easy to Use】The internal USB card is provided from the motherboard through the PCI Express slot to ensure a stable connection and improve data transmission speed. Will not lose the connection problem like an external USB Hub. Quick and easy installation, a simple solution for connecting to and using USB 3.2 devices on your standard desktop
- 【No External Power Adapter】 Users do not need to plug any additional power cable on from powersource and get 5V/12A max power supply for high-power consuming device ( NOT support BC 1.2 charging or Power Delivery) , Support device only, Like HDD/SSD enclosure, VR sensor etc
Rank #2
- 1. Intel Thunderbolt 4 JHL 8540 controller
- 2. Ultrafast connectivity: Two Type-C ports with USB 4 support, up to 40Gb/s bi-directional bandwidth, per port allows you to connect up to five Thunderbolt-enabled devices in a daisy-chain configuration using Thunderbolt cables.
- DisplayPort 1.4: support up to 8K resolution monitors
- Quick charge solution: up to 100W quick charge
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.
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