Gigabyte Releases Thunderbolt 5 Add-in Card with PCIe 4.0 Interface

Gigabyte has quietly added the first Thunderbolt 5 add-in card to its website under the rather unimaginative name of Thunderbolts 5. The card itself is nothing remarkable when compared to Thunderbolt 4 add-in cards, although it sports a third mini DisplayPort input for unclear reasons, as well as two USB Type-C outputs. This time around Gigabyte has added support for more power though, as the card features a pair of what appears to be 6-pin PCIe power connectors and the card supports up to 100 W USB PD charging. Courtesy of the new JHL9580, or Barlow Ridge controller, the card offers support for DP 2.1 with resolutions of up to 8K at 60 Hz, as well as data speeds of up to 80 Gbps, or 120/40 Gbps in asymmetric mode.

Intel’s JHL9580 controller has a PCIe 4.0 x4 host interface, the same as ASMedia’s ASM4242 USB4 host controller and it’s a big step up from Intel’s previous Thunderbolt 4 controllers that were stuck with PCIe 3.0. Note that the JHL9580 is also offered in a Thunderbolt 4 version known as the JHL9540 which also uses a PCIe 4.0 x4 interface and offers DP 2.1 support, but slower speeds. Both of the new Barlow Ridge controllers also support USB 3.2 Gen 2×2 (20 Gbps), something previous Thunderbolt controllers didn’t. Intel has a list price for the JHL9580 of US$19, which is just over US$8 more than the JHL8540 Maple Ridge controller which launched in 2020, as such, expect Thunderbolt 5 add-in cards to come at an even higher price point than previous Thunderbolt 4 add-in cards. Gigabyte might be first out of the gate, but we expect most motherboard makers to follow suit with products of their own before the end of the year.