• Overview
  • Tech Specs
  • Accessories

High Speed Alternative to Ordinary SD Media Readers

Sonnet’s SDXC UHS-I Pro Reader/Writer ExpressCard/34 quickly transfers files from SDXC™ and SDHC™ memory cards to your ExpressCard slot-equipped MacBook Pro or Windows notebook computer on-location, in the studio, or office. No ordinary card reader, this UHS-I speed class-compliant adapter supports at full speed the fastest available SDXC and SDHC memory cards, and future cards up to 104 MB/s!

Unlike common SD media readers, Sonnet's SDXC UHS-I Pro Reader/Writer ExpressCard/34 uses the 2.5 Gbps PCI Express interface incorporated into ExpressCard® slots, so it delivers performance superior to adapters that use the ExpressCard slot’s slower USB 2.0 interface. Also unlike common SD media readers, Sonnet's SDXC UHS-I Pro Reader/Writer ExpressCard/34 has the extra pins necessary to support SDXC UHS-I and SDHC UHS-I memory cards at full speed. If you’re a photographer or videographer using equipment that relies on fast, high capacity SDXC or SDHC cards, this Sonnet adapter will save you time and accelerate your workflow.

Thunderbolt Compatible with Echo ExpressCard/34 A

Key Features

Supports UHS-I SDXC and SDHC media at maximum speeds today, with sustained data transfers up to 104 MB/sec as faster, next generation cards become available

Uses the ExpressCard slot’s PCI Express interface to deliver performance superior to adapters that depend on the ExpressCard slot’s USB 2.0 interface

Fits completely inside the ExpressCard slot with no protrusion—the adapter may be left in all the time

Compatible with Sonnet's Echo ExpressCard/34 Thunderbolt Adapter


MacBook Pro with SDXC Cards

Not only is it fast, it's perfectly sized—the SDXC UHS-I Pro Reader/Writer ExpressCard/34 adapter inserts flush inside your computer's ExpressCard slot so you can store it there when it’s not in use.


Part No.  
SDXC-UHSI-E34 Discontinued
Warranty 1-year
RoHS Compliant Yes
Bus Interface ExpressCard/34, PCI Express Interface
Supported Media SDXC, SDHC, SD
Media Connector Type Push/push media card connector
Data Transfer Rate Up to 104 MB/s
Dimensions 34 mm x 75 mm x 5 mm
(1.34" x 2.95" x 0.19")

Specifications subject to change without notice.

Mac OS Logo For Windows Logo ExpressCard/34 Logo For RoHS

Mac Compatibility

MacBook® Pro (with an ExpressCard slot)

OS X® Version 10.5.8 - 10.12.6

Windows Compatibility

PC notebook (with an ExpressCard slot)

Windows® 10, 8, 7, Vista®, XP (SP2)

Product image Product Name Part No. Description
ExpressCard/34 to 54 Stabilizer ExpressCard/34 to 54 Stabilizer E34-E54-BK Brace for stabilizing an ExpressCard/34 adapter card in an ExpressCard/54 slot