📦 Shipping Notice – Public Holiday in Northern Ireland
Due to the Battle of the Boyne public holiday, there will be no postal service on Friday 11th and Monday 14th July 2025.
👉 Please note:
All orders placed after 4:00 PM on Thursday 10th July — including all orders placed over the weekend and on Monday 14th — will be shipped on Tuesday 15th July.
You're welcome to place orders anytime during this period — dispatch will resume first thing Tuesday.
Thanks for your patience and understanding!
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- Drive Enclosures
- Expansion Card Enclosures
- Graphic Card Enclosures
- NAS Enclosures
- Thunderbolt 5 Enclosures
- Thunderbolt 4 Enclosures
- Thunderbolt 3 Enclosures
- USB4 Enclosures
- USB-C Enclosures
- USB Enclosures
- Thunderbolt PCIe Mac Expansion Systems
- 1U Rackmount Enclosures
- 2U Rackmount Enclosures
- 3U Rackmount Enclosures
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- Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader














Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader
- Description
- Specifications
- Compatibility
- Product videos
- Reviews
Next Generation Ingest. Supports SxS PRO X Cards at Full Speed
The Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader is the perfect choice for today’s high-speed production workflows. Co-developed by Sony, SxS professional memory cards are trusted media for many Sony and ARRI digital cinema cameras. The latest SxS PRO X cards deliver nearly 3x faster read speeds than previous generations — and this reader ensures you get every bit of that performance.
When you’re traveling light, bus-powered operation makes a huge difference — no extra power brick needed. The Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader runs entirely off its Thunderbolt connection, keeping your kit compact and ready to go anywhere.
Supports all SxS Media: This versatile reader works with all generations of SxS cards, including SxS PRO X, SxS PRO+ E Series, and SxS-1. It also supports XQD cards via Sony’s ExpressCard Adapter (QDA-EX1), and SD cards via Sonnet’s SDHC Adapter for SxS Slot (SD-SXS-E34).
Perfect for DITs, the reader’s pocket-sized aluminum enclosure is just 2.8 x 4.1 x 0.8 inches — roughly the size of a deck of playing cards — and it fits easily in a backpack or laptop bag. Its single-port Thunderbolt design makes it ideal for use at the end of a daisy chain with other Sonnet SF3 Series readers.
Sonnet includes everything you need — a 0.5-meter Thunderbolt 3 cable and ThunderLok 3 connector retainer to keep your connection secure during critical transfers.
Key Features:
Superior ingest performance – up to 1250 MB/s with SxS PRO X; up to 440 MB/s with SxS PRO+
Bus-powered – no external power required
Supports all SxS Media – SxS PRO X, SxS PRO+, SxS PRO+ E Series, SxS-1
Supports XQD and SD cards (with adapters, sold separately)
Pocket-sized and rugged aluminum enclosure
40Gbps Thunderbolt 3 interface
Mac and Windows compatible
Includes 0.5-meter Thunderbolt 3 cable
Includes ThunderLok 3 connector lock
2-year product warranty
Free lifetime customer technical support
Designed in the USA
What’s in the Box:
Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader
0.5-meter Thunderbolt 3 cable
ThunderLok 3 connector retainer
Documentation
- Part Number: TB3-1SXSPX
- Warranty: 2-year
- Form Factor: Portable card reader
- Bus Interface: 40Gbps Thunderbolt
- External Connectors: SxS card slot, Thunderbolt port
- Operating Temperatures: 0˚C to 35˚C (32˚F to 95˚F)
- Dimensions (WxDxH): 2.8 x 4.1 x 0.8 in. (72 x 105 x 19.5 mm)
- Weight: Reader: 0.35 lbs (0.16 kg); Complete Package: 0.60 lbs (0.27 kg)
- Compliance: RoHS 3, IEC62368-1 and IEC62368-2 Safety
- Product Manual: PDF
- Technical Notes: Read speeds vary and are dependent on host devices, the OS version, or usage conditions.
- Mac: M series and Intel with Thunderbolt 3 ports
- macOS: macOS 13+, macOS Sequoia compatible
- Windows: Computers with Thunderbolt 5 or 4 ports; Windows 11
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Supported Media: Sony SxS, SxS-1, SxS Pro, SxS Pro+, and SxS PRO X
SD, SDHC, SDXC (requires compatible adapter, sold separately)
Sony AXS media NOT supported - Utilities: SxS cards supported by Sony Media Utility