Free Shipping on most orders over $100!*
Your Shopping CartYour Shopping Cart: 0 Items Your Shopping CartYour Shopping Cart: 0 Items

Your cart is empty.

Call the Mac experts! (888) 769-7629
Sign up for our Max Mail Newsletter!
Meet Max the Sasquatch
Apple Authorized Reseller

2port USB 3.0 Expresscard Adapter Card / Mfr. No.: EcUSB3s2

2port USB 3.0 Expresscard Adapter Card / Mfr. No.: EcUSB3s2
This product is
currently unavailable.
Please call 1-888-769-76291-888-769-7629
Item Number: sta-ecusb3s2
Vendor Number: ECUSB3S2
Vendor: Startech.Com
Chat with or call a Mac expert at 1-888-769-76291-888-769-7629
Call for availability
Add two USB 3.0 ports to your laptop through an ExpressCard slot. The ECUSB3S2 ExpressCard USB 3.0 Adapter lets you add two USB 3.0 ports to your laptop through a 34mm ExpressCard slot.

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.

Featuring a native NEC host controller chipset, the USB 3.0 ExpressCard adapter is compliant with USB 3.0 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices.

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.

General Information
Manufacturer Part NumberECUSB3S2
Manufacturer Website Address
Product ModelECUSB3S2
Product Name2 Port ExpressCard SuperSpeed USB 3.0 Card Adapter
Product TypeUSB Adapter

Technical Information

Host InterfaceExpressCard/34


Total Number of USB Ports2
Number of USB 3.0 Ports2

Physical Characteristics

Form FactorPlug-in Module
Weight (Approximate)1.59 oz


Additional Information
  • Backwards compatible with previous USB standards
  • Compliant with ExpressCard 1.0 specs
  • Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.96 specifications
  • Fully supports the following USB Communication Types: Control/Bulk/Interrupt/Isochronous Transfer
  • USB ports are Hot Swapping and Plug-and-Play compliant
  • Proving 80% more power than USB 2.0 card this USB 3.0 controller card will reducing the need for additional external power adapters
  • SuperSpeed USB 3.0 connectivity at up to 5Gbps on any ExpressCard enabled PC.
  • Small form factor that fits in 34mm and 54mm ExpressCard slots for versatility and portability.
Platform SupportedPC
Green CompliantYes
Green Compliance Certificate/AuthorityRoHS


Limited Warranty2 Year
Check Out with PayPal