Startech 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 | USB adapter | PCIe 3.0 x4 low profile | USB-C 3.2 Gen 2x2 x 1
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Main Specification
| Product Description | Startech 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 - USB adapter - PCIe 3.0 x4 - USB-C 3.2 Gen 2x2 x 1 |
|---|---|
| Device Type | USB adapter |
| Form Factor | Plug-in card - low profile |
| Interface (Bus) Type | PCI Express 3.0 x4 |
| Ports | USB-C 3.2 Gen 2x2 x 1 |
| Dimensions (WxDxH) | 8 cm x 5.1 cm x 2.2 cm |
| Weight | 37 g |
| Data Link Protocol | USB 3.2 Gen 2x2 |
| Data Transfer Rate | 20 Gbps |
| Processor | ASMedia ASM3242 |
| Compliant Standards | USB 2.0, USB 3.0, USB 3.1, USB 3.1 Gen 2, xHCI 1.1, USB 3.2 Gen 2, USB 3.2 Gen 1, USB 3.2 Gen 2x2 |
| System Requirements | Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Linux LTS versions only, Linux 3.5 or later, Apple macOS 10.13 - 10.15, Apple macOS 11.0, Apple macOS 12.0, Windows 8 / 8.1 / 10 / 11, Apple macOS 13.0 |
| Manufacturer Warranty | 2-year warranty |
General
| Device Type | USB adapter |
|---|---|
| Form Factor | Plug-in card - low profile |
| Interface (Bus) Type | PCI Express 3.0 x4 |
Networking
| Ports | USB-C 3.2 Gen 2x2 x 1 |
|---|---|
| Connectivity Technology | Wired |
| Data Link Protocol | USB 3.2 Gen 2x2 |
| Data Transfer Rate | 20 Gbps |
| Compliant Standards | USB 2.0, USB 3.0, USB 3.1, USB 3.1 Gen 2, xHCI 1.1, USB 3.2 Gen 2, USB 3.2 Gen 1, USB 3.2 Gen 2x2 |
Processor / Memory
| Processor | ASMedia ASM3242 |
|---|
Expansion / Connectivity
| Interfaces | 1 x USB 3.2 Gen 2x2 - 24 pin USB-C |
|---|
Miscellaneous
| Included Accessories | Low-profile bracket |
|---|---|
| MTBF | 3,126,209 hours |
| Compliant Standards | FCC, RoHS, UASP (USB Attached SCSI Protocol) |
Software / System Requirements
| OS Required | Microsoft Windows Server 2012 R2, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Linux LTS versions only, Linux 3.5 or later, Apple macOS 10.13 - 10.15, Apple macOS 11.0, Apple macOS 12.0, Windows 8 / 8.1 / 10 / 11, Apple macOS 13.0 |
|---|
Dimensions & Weight
| Width | 8 cm |
|---|---|
| Depth | 5.1 cm |
| Height | 2.2 cm |
| Weight | 37 g |
Dimensions & Weight (Shipping)
| Shipping Width | 14.2 cm |
|---|---|
| Shipping Depth | 17 cm |
| Shipping Height | 3 cm |
| Shipping Weight | 101 g |
Manufacturer Warranty
| Service & Support | Limited warranty - 2 years |
|---|
Environmental Parameters
| Min Operating Temperature | 0 °C |
|---|---|
| Max Operating Temperature | 85 °C |
| Humidity Range Operating | 15 - 90% |
Product features
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 3.1 Gen 1 and USB 3.0 (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 3.2/3.0/2.0 devices PEXUSB321C is backed by a StarTech.com 2-year warranty and free lifetime 24/5 multi-lingual North American based technical support. StarTech.com has been the IT professionals' choice for over 30 years.Key selling points
- HIGH PERFORMANCE: Add 1x USB-C SuperSpeed 20Gbps port to your desktop PC with this USB 3.2 Gen 2x2 PCIe Card; Expansion card provides up to 15W (5V @ 3A) to power & charge devices
- FULL USB 3.2 GEN 2X2 SPEEDS: Featuring the ASMedia ASM3242 host controller using x4 lanes of PCIe 3.0, this card is fully capable of speeds up to 20Gbps enabling fast access to high-performance devices like NVMe drives and SSDs
- MAXIMIZED USB PERFORMANCE: USB Type-C PCI Express card supports Multiple INs to reduce bandwidth loss when mix speed devices are connected to a Hub (hub must also support this feature); UASP support improves performance with storage devices
- COMPATIBILITY: Add-on card installs in full or low-profile (bracket incl) PCIe 3.0 x4 slot (Backward compatible w/PCIe 2.0); Windows/Linux/macOS w/auto drivers Win 8 & up; Works w/USB 3.2 Gen 2/3.0/2.0 devices
- COMPATIBILITY NOTICE: The USB-C 20Gbps port supports data transfer only; It does not support DisplayPort Alt Mode for video output, USB Power Delivery, or Thunderbolt devices
References
MPN: PEXUSB321C
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04/06/2026 05:07:52