Specifications
Manufacturer: StarTech.com
Manufacturer Part Number: ECUSB3S254F
Manufacturer Website Address: http://www.startech.com
Brand Name: StarTech.com
Product Name: 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter
Marketing Information:

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.

The SuperSpeed USB 3.0 Card supports data transfer rates of up to 5Gbps, and is backward compatible with USB 2.0 (at up to 480Mbps), or USB 1.1/1.0 at up to 1.5/1.2 Mbps respectively – the perfect laptop accessory for users to connect USB devices, both new and old.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Improved Performance with UASP

UASP is supported in Windows 8 and Server 2012. 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, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

More from the Manufacturer

Product Type: USB Adapter
Technical Information
Host Interface: ExpressCard/54
Interfaces/Ports
Total Number of USB Ports: 2
Number of USB 3.0 Ports: 2
Physical Characteristics
Form Factor: Plug-in Module
Height: 5 mm
Width: 54 mm
Depth: 74 mm
Miscellaneous
Platform Supported: PC
Environmentally Friendly: Yes
TAA Compliant: Yes