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This PCIe USB 3.1 Gen 2 card installs into an available PCI-Express slot in your computer and enables you to upgrade your current system by adding two USB-C™ (10Gbps) ports.

Faster USB Performance

Also known as USB 3.2 Gen 2x1, this USB 3.1 Gen 2 card adds two 10Gbps USB Type-C™ ports to your computer.

Utilizing an ASMedia ASM3142 chipset, this card harnesses the speed of USB 3.1 Gen 2. With higher data throughput support, this USB 3.1 Gen 2 PCIe expansion card is a necessity for external drives and many other USB 3.1 Gen 2 peripherals and includes an optional SATA power connector for high power devices.

The card is backward compatible with USB 3.0 (5Gbps) and USB 2.0 (480mbps) devices. The card works with newer USB-C devices, but can easily support your existing USB-A peripherals using inexpensive USB Type C cables and adapters. See our Accessories Tab for supported options.

Easy Installation

The USB 3.1 card is compatible with Windows®, Linux® and macOS® operating systems. The card includes both standard-profile and low-profile brackets to install in various form-factor PCs and servers.

The Choice of IT Pros Since 1985

StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales.

The PEXUSB312C3 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

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Connector(s)
Connector Type(s)	PCI Express x4 Male
External Ports	USB Type-C (24 pin) USB 3.1 (10Gbps) Female
Internal Ports	SATA Power (15 pin) Plug
Environmental
Humidity	20~80% RH
Operating Temperature	0°C to 70°C (32°F to 158°F)
Storage Temperature	-20°C to 85°C (-4°F to 185°F)
Hardware
Bus Type	PCI Express
Card Type	Standard Profile (LP bracket incl.)
Chipset ID	ASMedia - ASM3142
Industry Standards	USB 3.2 Specification Rev. 2.0 USB Specification Rev. 2.0 PCI Express Base Specification Rev. 3.0 Intel xHCI Specification Rev. 1.1 UASP (USB Attached SCSI Protocol) Rev. 1.0
Interface	USB 3.1 Gen 2
Port Style	Integrated on Card
Ports	2
Packaging Information
Package Height	3 cm [1.2 in]
Package Length	17.3 cm [6.8 in]
Package Width	14.2 cm [5.6 in]
Shipping (Package) Weight	120 g [4.2 oz]
Performance
Maximum Data Transfer Rate	10Gbps
Type and Rate	USB 3.2 Gen 2 - 10 Gbit/s
UASP Support	Yes
Physical Characteristics
Product Height	1.8 cm [0.7 in]
Product Length	12.2 cm [4.8 in]
Product Width	8 cm [3.1 in]
Weight of Product	0 kg [0.1 lb]
Prominence
Description CDW 75 - 1st Line	StarTech.com 2-port 10Gbps USB C PCIe Card - USB 3.1 Gen 2 PCI Express Card
Software
OS Compatibility	Windows® 7, 8, 8.1, 10 Windows Server® 2008 R2, 2012, 2016, 2019 Linux® 3.5 to 4.11.x LTS version only macOS Catalina (10.15) macOS Mojave (10.14) macOS High Sierra (10.13)
Special Notes / Requirements
Note	The card's USB-C ports are standard data throughput port. They do not support DP Alt Mode or USB Power Delivery.
	The maximum throughput of this card is limited by the bus interface. PCI Express Gen 1.0 max throughput is 2.5Gbps. PCI Express Gen 2.0 max throughput is 5Gbps. PCI Express Gen 3.0 max throughput is 10Gbps.
System and Cable Requirements	Optional SATA power connector
	PCI Express enabled computer or server with a PCI Express x4 slot or higher (x8, x16)
What's in the Box
Included in Package	Low Profile Bracket
	Quick Start Guide
	USB 3.1 Card

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Expansion adapter card w/ 2x USB Type-C ports 10Gbps per port
Install dual port USB-C add-on card in full/low-profile PCIe 3.0 x4 slot (works w/PCI-e 2.0)
SATA power provides 5V 3A (15W) /USB-C port
USB 3.1 Gen 2 or USB 3.1 Gen 2x1 PCI Express Host Controller card supports Multiple INs maintaining max bandwidth w/mixed speed devices | Upgraded version of our popular USB card PEXUSB312C2
USB-C PCIe Card w/ UASP optimizes USB performance w/external storage devices SSDs/NVMe drives