USB 3.2 Gen 2x2 PCIe Card - USB-C 20Gbps PCI Express 3.0 x4 Controller - USB Type-C Add-On PCIe Expansion Card -Windows/Linux

1-Port USB 3.2 Gen 2x2 PCIe card with 1x USB Type-C Port - Up to SuperSpeed 20Gbps - USB-C PCI Express host controller card supports Multiple INs / UASP - Up to 15W of power - Full or low-profile PCI-e x4 slot add-on expansion card - Win/Linux/macOS
Availability: Out of stock
Manufacturer part number: PEXUSB321C


Brand Name
Country of Origin Taiwan
Form Factor Plug-in Card
Height 0.9"
Host Interface PCI Express 3.0 x4
Length 2"
Limited Warranty 2 Year
Manufacturer Part Number PEXUSB321C
Manufacturer Website Address
Marketing Information

This PCIe USB 3.2 Gen 2x2 controller card installs into an available PCI-Express x4 slot in your computer and enables you to upgrade your current system by adding a USB-C™ (20Gbps) port.

Add a 20 Gbps USB Type-C Port to Your Desktop Computer

The controller card enables you to connect USB-C Gen 2x2 (20 Gbps) devices to your desktop computer. The USB-C port is ideal for connecting USB devices such as external hard drives and solid state drives or charging and syncing your mobile devices. The USB-C port provides up to 15W (5V/3A) of power and is backward compatible with USB 3.2 Gen 2 (10 Gbps) and USB 3.2 Gen 1 (5 Gbps) devices.

Note: USB 3.2 Gen 2 (10 Gbps) is also know as USB 3.1 Gen 2 (10 Gbps), and USB 3.2 Gen 1 (5 Gbps) is also know as USB 3.0 and USB 3.1 (5 Gbps).

SuperSpeed USB 3.2 Gen 2x2 (20 Gbps) Performance

The USB 3.2 Gen 2x2 card features an ASMedia ASM3242 host controller that utilizes x4 lanes of the PCIe 3.0 bus, making the card capable of speeds up to 20Gbps and enabling fast access to high-performance devices like NVMe drives and SSDs. The controller card supports Multiple INs to reduce bandwidth loss when multiple devices are connected through a USB Hub (Note: The USB hub must also support this feature). The card also supports UASP for improved performance with storage devices.

Wide Installation Compatibility

This add-on card includes both full-profile and low-profile installation brackets ensuring you can install it into either a full or low-profile PCIe 3.0 x4 slot (backward compatible w/PCIe 2.0). For wide platform support the card is compatible with Windows, Linux and macOS. For hassle-free installation the drivers install automatically on computers running Windows 8 or higher. Works w/USB 3.1/3.0/2.0 devices

PEXUSB321C is backed by a 2-year warranty and free lifetime 24/5 multi-lingual North American based technical support. has been the IT professionals' choice for over 30 years.

Number of USB 3.2 Ports 1
Package Contents
  • PCI Express USB Card
  • Full Profile Bracket (Installed)
  • Low Profile Bracket
  • Quick-Start Guide
Platform Supported PC
Platform Supported Linux
Platform Supported Mac
Product Name PCI Express USB Card
Product Type USB Adapter
Total Number of USB Ports 1
UASP Support Yes
Weight (Approximate) 1.30 oz
Width 3.1"