Sonnet Technology Dio - CompactFlash & SDXC USB 3.0 Media Reader

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Little Speed Reader

Sonnet’s Dio Pro CompactFlash and SDXC USB 3.0 Media Reader quickly transfers files from CompactFlash (CF), SDXC and SDHC™ memory cards to your computer on location, in the studio, or at the office. With one slot each for CF and SD media, Dio’s ability to transfer data from the fastest professional memory cards at much higher speeds than USB 2.0 card readers are capable makes for a significantly more convenient and efficient workflow. This handy device also supports concurrent and card-to-card file transfers.

 Dio can ingest files from your pro memory cards up to four times as fast as other card readers. What's its secret? This Sonnet reader exploits its 5.0 Gb/s SuperSpeed USB 3.0 interface to deliver superior performance with suitably equipped computers. Dio is UDMA6-enabled and UHS-I-compliant for CF and SD media, respectively. As a result, Sonnet’s high-performance memory card reader transfers data from currently available CF cards at up to 70 MB/s, while it supports at full speed the fastest available SDXC and SDHC memory cards, as well as future cards up to 104 MB/s.

This little, rugged Sonnet pro media reader is compatible with Windows® desktop and laptop computers with USB 3.0 ports. Got a Mac®? It is also compatible with Mac® Pro computers with Sonnet’s Mac OS® X-compatible Allegro USB 3.0 PCIe adapter card installed, and MacBook Pro computers using Sonnet's Mac OS X-compatible USB 3.0 ExpressCard/34 adapter. No USB 3.0 ports at your disposal? Dio is backward compatible with USB 2.0 connections, too.

Sonnet Technology Dio Supports

Key Features

  • Dual Format Memory Card Reader—One slot each for CompactFlash (CF) and SD (SDXC, SDHC, SD) media
  • Fast USB 3.0 Interface—5.0 Gb/s SuperSpeed USB 3.0 interface delivers superior performance with USB 3.0 port-equipped computers
  • Fast File Transfers—Transfers data from CF cards at up to 70 MB/s, SDXC and SDHC memory cards at full speed (limited by card)
  • Small and Rugged—The case measures just 2.7 inches wide x 2.5 inches deep x 0.8 inches tall; no doors or pop-up mechanisms to break or interfere with use

Sonnet Technology Dio Media Cards

Download Files in a Flash. With a compact and durable design, Sonnet's Dio provides lightning-fast access to your files stored on CompactFlash and SD media cards via a USB 3.0 interface. No USB 3.0 port? No problem. Dio is completely USB 2.0 backward compatible.

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Part No.

  • DIO-USB3 Dio


  • Warranty 1-year
  • Form factor Compact media reader
  • External Connectors
    • USB 3.0 Micro B
    • CompactFlash
    • SD
  • Dimensions (WxDxH) 2.7" x 2.5" x 0.8" (68 x 63 x 20 mm)
  • RoHS Compliant Yes
  • Package Contents
    • Dio Media Reader
    • 1-meter USB 3.0 cable
    • Documentation

Compact Flash Slot

  • Supported Media Type 1 CompactFlash
  • Media Connector Type Push/pull media card connector
  • Data Transfer Rate Up to 70 MB/s

SD Slot

  • Supported Media SDXC, SDHC, SD
  • Media ConnectorType Push/pull media card connector
  • Data Transfer Rate Up to 104 MB/s

Mac Compatibility

  • Mac® with USB 3.0 ports or USB 2.0 ports (at USB 2.0 speeds)
  • Mac Pro® (with card slots) equipped with Sonnet’s Allegro™ USB 3.0 4-Port PCIe Computer Card
  • MacBook® Pro equipped with Sonnet’s USB 3.0 ExpressCard/34 Computer Card
  • macOS® 10.6.8+
  • macOS High Sierra Compatible

Windows Compatibility

  • PC with USB 3.0 ports or USB 2.0 ports (at USB 2.0 speeds)
  • Windows® 10, 8, 7
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