SONNET SF3 Series AJA PAK Media Pro Card Reader

Duel-slot Media Card Reader for Computers with Thunderbolt 4 or 3 Ports


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Ingest Simultaneously from Two Cards
Dual Card Slots, Double Productivity

Certified by AJA, the SF3 Series – AJA PAK Media Pro Card Reader ingests media files from PAK Media memory cards at the fastest speeds the cards will support to any computer with Thunderbolt 4 or Thunderbolt 3 ports. And, for even greater efficiency, it can ingest files simultaneously from two cards at high speed — up to 1030 MB/s — to cut your ingest times in half.


Supports AJA PAK Media Cards at Full Speed
Superior Dual-slot Ingest Performance

When your multicam live event production, documentary, news or sports programming is captured to AJA® Video System’s Ki Pro® Ultra 12G 12G-SDI4K/UHD/HD recorder and player, your footage is recorded on ultra-reliable AJA PAK Media SSD cards. With the recorder’s ability to support four channels of simultaneous 1080p at 60 fps recording — or a 4K at 60 fps recording in single-channel mode — those cards fill up fast. The need for a tool that accelerates offloading media files from multiple cards is greater than ever, too. The Sonnet SF3™ Series – AJA PAK Media Pro Card Reader is the perfect tool for the job.


Key Features

  • Superior Ingest Performance
    • Ingests footage from all AJA PAK media cards at maximum supported speeds.
  • Cuts Ingest Times In Half
    • Dual card slots enable simultaneous ingest of files from two cards for greater efficiency, up to 1030 MB/s aggregate.
  • PCIe 3.0 x4 Thunderbolt Device
    • This Thunderbolt 3 device provides four lanes of PCIe 3.0. Thunderbolt 4 would be limited to one lane total. Learn more about Thunderbolt 3 performance benefits over Thunderbolt 4.
  • Compact, Rugged, Stackable
    • Small and rugged aluminium enclosure for reliable operation; design enables multiple SF3 Series pro card readers to occupy same footprint.
  • Rackable
    • Threaded mount points enable secure attachment of two readers side-by-side on a rack tray in just 1U of rackspace.
  • Two Thunderbolt Ports
    • One port connects to computer; second port supports daisy chaining of up to five additional SF3 Series pro card readers.


Mac Compatibility

  • Mac (M1, M2, M1 Pro, M1 Max, and M1 Ultra)
  • Mac (Intel) with Thunderbolt 3 ports
  • Mac (Intel) with a Thunderbolt 2 or Thunderbolt 1 port with an Apple Thunderbolt 3 (USB C) to Thunderbolt 2 Adapter plus a Thunderbolt 2 cable (both sold separately).
  • macOS® 10.12.6+
  • macOS Ventura compatible

Windows Compatibility

  • Windows computer with Thunderbolt 4 or Thunderbolt 3 ports
  • Windows 11 and 10

Supported Media

  • All AJA PAK Media cards including the PAK 2000, PAK 1000, PAK 512, and PAK 256


Part Number

  • SF3-2AJAPK


  • 2-year

Form Factor

  • Portable card reader

Bus Interface

  • 40Gbps Thunderbolt

External Connectors

  • Two PAK Media card slots
  • Two Thunderbolt ports
  • Power port

Power Adapter

  • Universal 60W, 100-240V AC, 50–60 Hz

Operating Temperatures

  • 0˚C to 35˚C (32˚F to 95˚F)

Dimensions (WxDxH)

  • 5.8 x 6.1 x 1.4 in. (148 x 155 x 36 mm)


  • Reader and Power Adapter: 2.6 lbs. (1.2 kg)
  • Complete Package: 3.2 lbs. (1.4 kg)


  • RoHS 3 (Directive 2015/863)
  • IEC62368-1 and IEC62368-2 Safety

Package Contents

  • Sonnet SF3 Series – AJA PAK Media Pro Card Reader
  • Power adapter
  • Region-specific power cable for US, Australia, Europe, Japan, Switzerland, or UK
  • 0.5-meter Thunderbolt cable
  • ThunderLok 3 Thunderbolt connector retainer clip(1)
  • Documentation