ESTONE PCIE24A3C 7-port PCIe USB 3.0 expansion card (4× USB-A, 3× USB-C)

Seven USB 3.0 ports on one PCIe card

This ESTONE PCIE24A3C expansion card adds four USB-A and three USB-C ports to a desktop through a single PCI Express x1 slot. It suits builders who need more front-panel or rear I/O for keyboards, mice, external drives, webcams, printers, scanners, game controllers or VR headsets. Windows 7 through 11, macOS 10.8.2 and above, and Linux distributions including Ubuntu and unRAID are supported. The card fits x1, x4, x8 or x16 sockets on PCIe 2.0, 3.0 or 4.0 motherboards.

Sustained throughput at the bus limit

Each port runs at the USB 3.0 5.0 Gbps signalling rate, but the single PCIe 2.0 x1 lane caps total bandwidth so simultaneous heavy transfers from multiple devices will share that ceiling. The card relies on a Renesas or VLI controller that requires a driver on Windows 7, while Windows 8, 10, 11, macOS 10.8.2 and Linux load native support. Real-world copy speeds depend on the attached storage and host system rather than the card alone.

Metal bracket and standard mounting screws

The low-profile bracket uses the supplied screws to secure the card in any standard PCIe slot, and the seven ports sit in a single row for tidy cable routing. Backwards compatibility with USB 2.0 and 1.1 devices means older peripherals still work without adapters. Note that some MSI motherboards have reported incompatibility, so verify platform clearance before purchase.