STARTECH.COM PEXUSB321C
USB Adapter - PCI Express 3.0 x4 - Plug-in Card - UASP Support - 1 Total USB
Key facts
- Part number
- PEXUSB321C
- Brand
- STARTECH.COM
- Category
- Adapters
- Price
- AUD 129.79≈ USD 90.61 RRP
- Availability
- On request — ask for a quote
The STARTECH.COM PEXUSB321C is an adapter listed in the Prology Parts Index. RRP AUD 129.79≈ USD 90.61 (Oct 2026). Request a quote for volume pricing, or sell us your used adapters.
Overview
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
- Adds a port to your PC through the PCI Express 3.0 x4 interface
- Featuring 1 USB ports to connect USB-compatible devices
Specifications
General
- UASP Support
- Yes
- Host Interface
- PCI Express 3.0 x4
Mac OS X 12.0 Monterey
- Total Number of USB Ports
- 1
- Number of USB 3.2 Ports
- 1
- Platform Supported
- PC
Linux
- Weight (Approximate)
- 36.9 g
- Form Factor
- Plug-in Card
- Length
- 50.8 mm
- Height
- 22.9 mm
- Width
- 78.7 mm
- Product Type
- USB Adapter
Manufacturer Website Address
- Product Name
- PCI Express USB Card
Price history
- Latest
- AUD 129.79≈ USD 90.61
- Oct 2026
- Lowest recorded
- AUD 129.79≈ USD 90.61
- Highest recorded
- AUD 129.79≈ USD 90.61
- Recorded
- 2026
- 1 price point
AUD 129.79 rrp, recorded
Why buy from Prology
- Tested before dispatchEvery item is checked by our technicians before it ships.
- Warranty includedParts are covered by a Prology warranty – ask us for the terms.
- Fast shippingDispatched from our Australian and US locations.
- Real people, quick repliesQuotes and answers within 1 business day.
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