2-Port USB 3.1 (10Gbps) Card - USB-A, 1x External, 1x Internal - PCIe
StarTech ID: PEXUSB311EI
This USB 3.1 Gen 2 card prepares you for the next generation of USB performance, on the inside and outside of
your computer. The 2-port card adds one internal Type-A connector as well as one external Type-A connector to
your desktop computer, with a combined bandwidth of up to 10Gbps. For power-hungry devices, the card also
has an internal SATA power connector, enabling you to use your computer’s power supply to add more power to
the ports.
With greater bandwidth, you can save time and avoid the performance bottlenecks that are often associated with
other connectivity technologies.
Connectivity on the inside and out
With an internal port, you can connect internal devices that use a USB Type-A connector, such as a front-bay
SD card reader. Plus, you can use the internal port to keep peripherals safely inside your computer case —
perfect for high-capacity USB flash drives or interface devices used for external wireless peripherals such as
keyboards and mice or Bluetooth® adapters.
The card also features an external port that can be used for any USB Type-A device, like your external hard
drive or any wired peripheral.
Faster USB performance
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By adding 10Gbps USB ports to your computer, you can harness the speed of USB 3.1 Gen 2 and rest assured
that you’re ready for both current and future high-bandwidth USB-A devices.
With higher data throughput, this PCI Express USB 3.1 card is a necessity for external hard drives, hard drive
enclosures, and many other USB 3.1 peripherals. Plus, the USB card integrates a SATA power connector to
support high-powered devices, making it ideal for use with large external storage solutions.
For more flexibility, you can couple the card with a USB-C to USB-A cable (USB31AC1M) and connect your
USB Type-C™ devices.
Compatible with your older USB devices
Connecting your older peripherals isn’t a problem. This versatile USB 3.1 Gen 2 (10Gbps) card is backward
compatible with legacy USB 3.0 and 2.0 devices that use the common USB Type-A port, so you can eliminate
the added expense and aggravation of purchasing new devices.
Easy to install, in virtually any Windows based PC
For a hassle-free installation with no additional software or drivers required, the card is natively supported by
most operating systems, and interfaces with the PCI Express 3.0 x4 slot on your computer. Plus, the high-quality
card includes both standard-profile and low-profile (half-height) brackets, making it easy to install in full or small
form-factor PCs or servers.
The PEXUSB311EI is backed by a StarTech.com 2-year warranty and free lifetime technical support.
Applications
Upgrade an older PCIe equipped desktop from USB 3.0/2.0 to USB 3.1 Gen 2 (10Gbps)
Connect a USB device inside your computer case for added security and convenience
Expand the USB capabilities of your system, or install the card as a vital hardware component when
building a new PC
Ideal for file backups, video editing, and data recovery, using high-bandwidth USB 3.1 Gen 2 external
storage solutions
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Features
Transfer files and access USB 3.1 devices faster, both inside and outside your computer case, with up to
10Gbps throughput
Fast, hassle-free setup, and natively supported by many operating systems
Fits into standard or low-profile systems, with its dual-profile design
Cost-effective backward compatibility
Compatible with high-powered USB devices, with an integrated SATA power connector
Compliant with UASP (USB Attached SCSI Protocol) Revision 1.0
Compliant with Universal Serial Bus 3.1 Specification Revision 1.0, and Universal Serial Bus Specification
Revision 2.0
PCIe x4 interface compliant with PCI Express Base Specification Revision 3.0
Equipped with a full-profile bracket, includes a low-profile (half-height) bracket for installation in small
form-factor computers
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Technical Specifications
Warranty 2 Years
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID ASMedia - ASM1142
Industry
Standards
USB 3.1 Specification Rev. 1.0
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
Maximum
Data Transfer
Rate
10Gbps
Type and
Rate
USB 3.1 Gen 2 - 10 Gbit/s
UASP
Support
Yes
Connector
Type(s)
1 - PCI Express x4 Male
External Ports 1 - USB 3.1 USB Type-A (9 pin; Gen 2; 10 Gbps) Female
Internal Ports 1 - USB 3.1 USB Type-A (9 pin; Gen 2; 10 Gbps) Female
Internal Ports 1 - SATA Power (15 pin) Plug
OS
Compatibility
Windows® 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012
Mac OS X® 10.9 to 10.10
Linux® 3.5 to 4.4.x LTS version only
Note 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.
Note The available bandwidth (10Gbps) is shared equally between the two ports.
System and
Cable
Requirements
PCI Express enabled computer or server with a PCI Express x4 slot or higher (x8, x16)
System and SATA power connector
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Cable
Requirements
Humidity 20~80% RH (Non-condensing)
Operating
Temperature
5°C to 50°C (41°F to 122°F)
Storage
Temperature
-20°C to 60°C (-4°F to 140°F)
Product
Height
4.7 in [120 mm]
Product
Length
3.5 in [90 mm]
Product
Weight
1.9 oz [55 g]
Product Width 0.7 in [18 mm]
Shipping
(Package)
Weight
4.3 oz [121 g]
Included in
Package
1 - 2-port USB 3.1 (10Gbps) card - 1 ext, 1 int
Included in
Package
1 - low-profile bracket
Included in
Package
1 - instruction manual
Certifications, Reports and Compatibility
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