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Startech PEXUSB321C USB 3.2 GEN 2X2 PCIE CARD - USB-C 20GBPS
PCI Express USB expansion card adding one USB-C 3.2 Gen 2x2 port with data rates up to 20Gbps for compatible desktop and server systems.
Frequently asked questions
What does PEXUSB321C do?
Adds one USB-C port through one PCIe expansion slot, with support for compatible USB storage, peripherals and backward-compatible devices.
Who is this product best for?
Desktop upgrades, high-speed external storage, backup, video-editing and data-recovery workflows that need more USB connectivity.
What should I check before ordering?
The device, cable and host must all support USB 3.2 Gen 2x2 for 20Gbps. The USB-C port is data only and does not provide DP Alt Mode or USB PD.
Does it require drivers or software?
Supports the Windows, Windows Server, macOS and Linux versions listed in the specifications; newer systems may install drivers automatically.
What is included in the package?
PCIe USB card, applicable installation bracket or brackets, and product documentation.
What is the key installation requirement?
Install in a PCIe x4 or larger slot, fit the correct bracket and connect SATA power when optional or required for the intended USB power load.
Is it suitable for an Australian setup?
Yes. DeviceDeal supplies the Australian-market version; always confirm the available ports, power and system compatibility for your installation.
What warranty applies?
PEXUSB321C carries a StarTech.com 2 years manufacturer warranty, subject to the manufacturers terms and eligibility requirements.
Planning a broader setup? Browse the DeviceDeal buying guides. View the DeviceDeal product page.
(PEXUSB321C)
Why choose PEXUSB321C?

PEXUSB321C specifications
Exact-model specifications for compatibility checking.
| Warranty Information | |
|---|---|
| Warranty | 2 Years |
| Connector(s) | |
| Host Connector | 1 - PCI Express x4 |
| External Ports | 1 - USB Type-C (24 pin, Gen 2x2, 20Gbps) |
| Hardware | |
| Ports | 1 |
| Interface | USB |
| Bus Type | PCI Express |
| Card Type | Standard Profile (low-profile bracket included) |
| Port Style | Integrated on card |
| Chipset ID | ASMedia ASM3242 |
| Performance | |
| Maximum Data Transfer Rate | 20Gbps |
| UASP Support | Yes |
| USB Power Output | Up to 15W (5V/3A) |
| Software | |
| OS Compatibility | Windows 8/8.1/10/11; Windows Server 2012 R22022; macOS 10.13 and later; Linux 3.5 and later LTS versions |
| Special Notes / Requirements | |
| Display Support | Data only; does not support DisplayPort Alternate Mode |
| Power Delivery | Does not negotiate USB Power Delivery |
| What's in the Box | |
| Included | 1 - USB-C PCIe card; 1 - installed full-profile bracket; 1 - low-profile bracket; 1 - quick-start guide |
Sources: supplied product file, DeviceDeal product page and official StarTech.com specifications. Product appearance and specifications may change; confirm critical deployment requirements before ordering.
| SKU | PEXUSB321C |
| Barcode # | 65030891264 |
| Brand | Startech |
| Shipping Weight | 0.1200kg |
| Shipping Width | 0.003m |
| Shipping Height | 0.017m |
| Shipping Length | 0.004m |
This Australian-version product is supplied by DeviceDeal and is covered by the official StarTech.com 2 years manufacturer warranty in Australia.
- Keep your DeviceDeal tax invoice as proof of purchase.
- Coverage is subject to StarTech.com warranty terms, eligibility and product assessment.
- Warranty service does not replace rights that may apply under Australian Consumer Law.
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