Under the hood, the card features an Intel JHL8540 "Maple Ridge" Thunderbolt 4 controller. ThinkStation P500/P510, P700/P710, and P900/P910 platforms utilize discrete controllers in order to add support for SAS drives. The card supports DisplayPort 1.4 passthrough, so you can scale all the way up to 8K resolution on the connected monitors, if your graphics card is game. You connect your graphics card to the ThunderboltEX 4 using the included DisplayPort to mini-DisplayPort cables. The card provides DisplayPort passthrough for each port. The ASUS ThunderboltEX 4 card puts out two Thunderbolt 4 ports in the USB type-C physical format, each with 40 Gbps of bi-directional bandwidth.
and I Again Connected My Thunderbolt 3 card and Its work. even in BIOS it did not show the thunderbolt control option.
In normal circumstances, during the original manufacturer's warranty period, most repairs will be handled by the manufacturer. Intel Thunderbolt 2 technology add-in cards allow for lightning fast data transfer. I disconnected all m.2 NVME, I also disconnected My Graphics Card even then Thunderbolt 3 card is not active. 4XH0H00340, Thinkstation, Intel, Thunderbolt, ADD-IN, Card Refurbished. Choose an HDD, ultraslim ODD, 29-in-1 media card reader, and Firewire all within a Flex Module, which fits into a single bay. A 6-pin PCIe power input is also needed, as Thunderbolt 4 is capable of up to 100 W of power delivery per port, enabling single-cable RAID enclosures and monitors. Built-in Flex Bays allow you to easily mix and match only the components you need so you don't pay for what you don't want. The card features a PCI-Express 3.0 x4 host interface, and can be installed on any PCIe slot, x4 or larger. Also needed is a USB 2.0 header, of which you're likely to have plenty. The only catch here is that you'll need an ASUS motherboard with a Thunderbolt readiness header (which provides timing and other low-level system commands to the card).
While the minimum requirements for Thunderbolt 4 are much higher than those for Thunderbolt 3, reducing the amount of research you need, you still need to know the card’s functionality and how to get the best out of it.
ASUS today rolled out the ThunderboltEX 4, an add-on card designed to give your PC full Thunderbolt 4 connectivity. Before you buy a Thunderbolt 4 add-on card, you need to make sure that the card is compatible with your computer.