📦 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!

Flexx International Ltd
  • 0
No result found for your search.
  • Home
  • All Products
  • Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader
Categories
  • 🔍 Find Upgrades for My Mac
  • Mac Upgrades
  • Memory
  • Storage
  • Docks/Hubs
  • Enclosures
  • PCIe Cards
  • Adapters
  • Laptop Batteries
  • Tools & Service Kits
  • Peripherals
  • Dashcams/Bodycams
  • View More
Featured Products
OWC Express 1M2 USB4/Thunderbolt enclosure for NVMe M.2 SSDs - Portable External Storage
OWC Express 1M2 USB4/Thunderbolt 4 enclosure for NVMe M.2 SSDs - Portable External Storage
£119.49
Sonnet Echo Thunderbolt 3 Dock with two slots for  M.2 NVMe SSD
Sonnet Echo Thunderbolt 3 Dock with two slots for M.2 NVMe SSD
£322.49
OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive
OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive
£386.00
OWC Express 4M2 USB4 RAID Enclosure – 4-Bay M.2 NVMe SSD, Up to 3200MB/s
OWC Express 4M2 USB4 RAID Enclosure – 4-Bay M.2 NVMe SSD, Up to 3200MB/s
£216.49
OWC ThunderBlade X12 – Thunderbolt 5 NVMe RAID SSD (12TB–96TB)
OWC ThunderBlade X12 – Thunderbolt 5 NVMe RAID SSD (12TB–96TB)
£2,470.99
Sonnet Echo 13 Thunderbolt 5 Dock with SSD Storage (1TB-4TB), 140W Power, Mac/Windows/iPad Pro Compatible
Sonnet Echo 13 Thunderbolt 5 Dock with SSD Storage (1TB-4TB), 140W Power, Mac/Windows/iPad Pro Compatible
£477.49
Sonnet Silent Gen 4 PCIe card with 8 x M.2 NVMe SSD slots up to 64GB storage - add your own SSD
Sonnet Silent Gen 4 PCIe card with 8 x M.2 NVMe SSD slots up to 64GB storage - add your own SSD
£887.00
Transcend Portable SSD USB-C / USB-A model ESD310C
Transcend Portable SSD USB-C / USB-A model ESD310C
£31.49
OWC 128GB (4 x 32GB) PC4-21300 DDR4 2666MHz SODIMMs ram memory upgrade
OWC 128GB (4 x 32GB) PC4-21300 DDR4 2666MHz SODIMMs ram memory upgrade
£267.49
  • electro-track-order-icon
  • Free Delivery
  • electro-thumb
  • 99% Customers
    Feedback
  • electro-return-icon
  • 30 Days
    Return Policy
  • electro-payment
  • Payment
    Secure System
  • electro-brands-icon
  • Only Best
    Brands
% £-216.49
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
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
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
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
Sonnettech

Sonnet SxS PRO X Thunderbolt 3 Single-Slot Card Reader

No reviews
  • Share
  • Tweet
Product SKU: TB3-1SXSPX
Available:
Only 0 item in stock
0 item in stock
In stock
Pre-order
Out of stock
£216.49
 
This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Want it delivered by
  • 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
  • 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

Customer Reviews

Be the first to write a review
Write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Got questions? Call us
0800 195 4072
Follow Us
Policies
  • Return and refund policy
  • Shipping Policy
  • Cancellation policy
  • Terms of Service
  • Privacy Policy
Company Info
  • Knowledge Base
  • About us
  • Contact Us
  • Blog
Shop
  • Mac Upgrades
  • Memory
  • Storage
  • Docks/Hubs
  • Enclosures
  • PCIe Expansion Cards
  • Adapters
  • Laptop Batteries
  • Tools & Service Kits
  • Peripherals
  • More
© 2025 Flexx International Ltd. All Rights Reserved | Made by Banbridge Website Studio
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Flexx International Ltd
Product successfully added to your Shopping Cart
Continue shopping View cart