2 port PCI Express SuperSpeed USB 3.0 Card with UASP Support - 1 Internal 1 External - PEXUSB3S11

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Product Overview

Add one internal and one external SuperSpeed USB 3.0 to your PC. The PEXUSB3S11 PCI Express USB 3.0 Card lets you add one internal, and one external USB 3.0 port to your PC through a PCI Express slot.

Featuring a native NEC PCI Express host controller chipset, the new USB 3.0 standard supports transfer rates of up to 5Gbps, while still providing backward compatibility with older USB 2.0 (480Mbps) and 1.1 (12Mbps) devices. The inclusion of an internal USB 3.0 connection provides the added benefit of compatibility with USB 3.0-based internal storage solutions or front-bay hubs.

Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details.

For bus-powered USB devices, this PCIe USB 3.0 card includes an optional SATA power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 devices (500mA for USB 2.0).

Backed by a lifetime warranty and free lifetime technical support.

Improved Performance with UASP

UASP is supported in Windows® 8, Server 2012 and Linux kernel 2.6.3 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance.

At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources.

Test results were obtained using an Intel® Ivy Bridge system, add-on USB 3.0 cards, a UASP-enabled enclosure, and a SATA III solid state drive.


Mfg Part# PEXUSB3S11
SKU 215889301
UPC 065030840040
UPC 14 00065030840040
Sales Rank 45586
Product Type USB Adapter / USB Adapter
Green Compliant Yes / Yes
Green Compliance Certificate/Authority RoHS / RoHS
Total Number of USB Ports 2 / 2
Height 3" / 3"
Width 4.8" / 4.8"
Brand Name /
Form Factor Plug-in Card / Plug-in Card
Manufacturer /
Product Name 2 port PCIe USB 3.0 Card - 1 Internal 1 External / 2 port PCIe USB 3.0 Card - 1 Internal 1 External
Manufacturer Part Number PEXUSB3S11 / PEXUSB3S11
Package Contents 2 port PCIe USB 3.0 Card - 1 Internal 1 ExternalLow Profile Bracket / 2 port PCIe USB 3.0 Card - 1 Internal 1 ExternalLow Profile Bracket
Limited Warranty 2 Year / 2 Year
Host Interface PCI Express / PCI Express
Thickness 748 mil / 748 mil
Weight (Approximate) 1.41 oz / 1.41 oz
Tech Specs
Ports 1 x Type A Female USB 3.0 - USB External / 1 x Type A Female USB 3.0 - USB Internal
Product Type USB Adapter
Manufacturer Part Number PEXUSB3S11
Manufacturer Website Address
Product Model PEXUSB3S11
Product Name 2 port PCIe USB 3.0 Card - 1 Internal 1 External
Brand Name
Package Contents 2 port PCIe USB 3.0 Card - 1 Internal 1 External Low Profile Bracket
Green Compliance Yes
Green Compliance Certificate/Authority RoHS
Dimensions 3" Height x 4.76" Width x 0.75" Thickness
Weight (Approximate) 1.41 oz
Form Factor Dual-profile Plug-in Card
Host Interface PCI Express
Data Transfer Rate 4.80 Gbps USB 3.0 SuperSpeed
Platform Support PC
Standard Warranty Lifetime
$33.49 + free shipping
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