PCIe to USB 3.2 Gen 2 Extension Card - 8-Port High-Speed Hub

In this review the RedComets U22 PCIe card is evaluated as a practical internal expansion for desktop users who need multiple high-speed USB ports. The bottom line: it is best for builders and power users who want to add six USB Type-A and two USB Type-C 3.2 Gen 2 ports from a single PCIe x4 slot, because its biggest advantage is raw transfer capability and a neat mix of A and C connectors. The card installs into a PCIe slot and draws power from the interface, making it a straightforward hardware upgrade for compatible systems.

Key Features

• Multi-port extension: Extends six USB Type-A and two USB Type-C 3.2 Gen 2 ports from a single PCIe x4 slot to give many device connections at once.
• High-speed transmission: Provides shared bandwidth groups with a total combined throughput up to 16Gbps to support fast file transfers and external drives.
• Per-port performance: Each port can reach up to 10Gbps when used alone, useful for single high-bandwidth devices.
• Wide compatibility: Works with Windows 11/10/8/7 and Mac OS 10.8.2+, with no drivers required for Windows 10, Mac OS and Linux.
• Built-in protection and power: USB Type-A ports supply up to 5W and Type-C ports up to 15W and all ports include short-circuit protection for safer operation.
• Easy installation: Installs into a PCIe x4 slot and draws power directly from the motherboard PCIe interface for a clean internal setup.

Who It's For

The card suits desktop builders, content creators and workstation users who need a compact internal solution to add multiple USB 3.2 Gen 2 ports without external hubs. It is especially useful when several high-speed external drives or dongles must be connected simultaneously.

It is not ideal for laptops or systems without an available PCIe x4 slot, and users who need guaranteed full 10Gbps on every connected device at once should consider solutions with dedicated lanes per port instead of shared bandwidth groups.

Pros & Cons

Pros

• Supports eight total USB 3.2 Gen 2 ports (six A, two C) for dense connectivity.
• High aggregate bandwidth up to 16Gbps allows fast transfers for multiple devices.
• Driver-free on modern OSes and draws power from the PCIe slot for easy installation.

Cons

• Bandwidth is shared across grouped ports, so multiple simultaneous heavy transfers may not reach full 10Gbps each.
• Some users report port accessibility and fit issues depending on case layout and bracket alignment.

Specifications

Product type	PCIe to USB 3.2 Gen 2 extension card
Ports	6 x USB Type-A 3.2 Gen 2, 2 x USB Type-C 3.2 Gen 2
PCIe slot	PCIe x4
Total bandwidth	Up to 16Gbps (shared groups)
Per-port max	Up to 10Gbps when used alone
OS compatibility	Windows 11/10/8/7 (drivers for Win7), Mac OS 10.8.2+, Linux
Power	Type-A up to 5W, Type-C up to 15W; draws power from PCIe interface

Our Verdict

The RedComets U22 PCIe to USB 3.2 Gen 2 card is a sensible, cost-effective internal option for desktop users who need many high-speed USB ports without external adapters. It delivers strong transfer capability and a useful balance of Type-A and Type-C connectors, though buyers should be aware of shared bandwidth groups and check case/bracket fit before purchase. For most builders who need expanded I/O, it represents good value.

Frequently Asked Questions

Do I need drivers for modern systems?
No, the card requires no drivers on Windows 10, Mac OS and Linux; Windows 7 may need a driver downloaded from the manufacturer's site.

Will every port run at 10Gbps at the same time?
No, ports are grouped and share bandwidth up to a combined 16Gbps, so simultaneous heavy transfers can reduce per-port speeds.

Does the card need an additional power cable?
No, it draws power directly from the PCIe interface and supplies up to 5W on Type-A and 15W on Type-C ports.