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Sonnet SF3 Series - CFast 2.0 Pro Card Reader Thunderbolt 3
Special Order
  • SKU: SF3-2CFST

Sonnet SF3 Series - CFast 2.0 Pro Card Reader Thunderbolt 3

  • Vendor: Sonnet
  • Product Type: Memory Cards

Special Order Item - Lead time of 3 weeks from order

With the increasing popularity of professional digital cinema cameras from Canon, ARRI and Blackmagic Design, the use of CFast 2.0 memory cards has soared, and the need for a truly high-speed card reader is undeniable. With current CFast 2.0 cards’ rated read speeds near 550 MB/s, it’s clear that USB readers don’t fill that need. Sonnet’s SF3™ Series - CFast™ 2.0 Pro Card Reader does. Featuring a 40Gbps Thunderbolt™ 3 interface, this device quickly ingests footage from CFast memory cards to any Mac or Windows computer with Thunderbolt 3 ports—on location, in the studio, or in the edit suite—at the fastest speeds the cards will support.


As the industry’s first CFast 2.0 card reader for Thunderbolt 3, the SF3 Series - CFast 2.0 Pro Card Reader employs its dual card slots to take advantage of the tremendous bandwidth offered by Thunderbolt 3. Capable of ingesting files simultaneously from two cards at concurrent data transfer speeds up to 1000+ MB/s—more than double the average ingest speed of USB 3.0 card readers—using the Sonnet reader makes for a significantly more convenient and efficient workflow.

Compact and Rugged

Measuring a compact 5.75 inches wide by 1 inch high by 3.5 inches deep, the SF3 Series - CFast 2.0 Pro Card Reader is suitable for use in any workspace, even where space is tight. The reader’s shell is made from extruded aluminum, making it lightweight, and yet rugged enough to be transported in an equipment bag without fear of damaging the case.

Bus Powered by Thunderbolt 3 Port No Power Adapters Required

The SF3 Series - CFast 2.0 Pro Card Reader connects directly to your Mac or Windows computer’s Thunderbolt 3 port or at the end of a Thunderbolt 3 device chain. Requiring only a single cable to connect to your computer, this high-performance Sonnet reader is bus powered (no separate power supply required).

Replaceable Captive Cable

Through the use of a captive cable, the SF3 Series - CFast 2.0 Pro Card Reader’s Thunderbolt cable remains firmly connected to it at all times. Should the cable ever break, it can easily be replaced by Sonnet or a Sonnet-authorized service center.

For more information head over to the Sonnet website.

Warranty 2-year
Form Factor Portable card reader
Bus Interface 40Gbps Thunderbolt 3
External Connector CFast slots
Data Transfer Rate Up to 1000+ MB/s aggregate
Power Bus-powered via Thunderbolt 3 connection
Supported Media CFast
CFast 2.0
Dimensions (WxDxH) 144.8 x 88.9 x 25.4 mm
RoHS Compliant Yes
Package Contents SF3 Series - CFast 2.0 ProCard Reader
Mac Compatibility Mac with Thunderbolt 3 ports
macOS® 10.12.6+
macOS Mojave compatible
PC Compatibility PC with Thunderbolt 3 ports
Windows® 10
Specifications correct at time of publication