Angelbird CFexpress AV PRO B SX (R1785/W1600) 12K - 330 GB

Angelbird CFexpress AV PRO B SX (R1785/W1600) 12K — Stable 1480 MB/s sustained write, 330 GB capacity

The Angelbird AV PRO CFexpress B SX is a CFexpress Type B memory card built for high-speed continuous mode photography and 12K+ RAW video workflows. It meets the demands of professional photographers and videographers who need steady, long-duration write performance and a capacity suitable for advanced shooting sessions.

Designed for continuous shooting and high-resolution video

This card delivers an uninterrupted sustained write speed of 1480 MB/s through Angelbird’s Stable Stream technology. As a result, you can record non-stop, buffer-free burst photography when your camera supports the format.

Because the card combines ultra-high sustained performance with a practical capacity, it fits a wide range of professional use cases. For example, use it for action sports, wildlife, fashion, news reporting, vlog posts, and video clips up to 12K+ RAW.

Important note on firmware updates

NOTE: Update card firmware with the Angelbird CFexpress Card Reader. Doing so keeps camera compatibility current and ensures that the card retains its full feature set over its lifespan.

At a glance

• Stable Stream technology: Maintains stable, uninterrupted write performance of 1480 MB/s across the entire capacity for continuous mode shooting.
• ProductUpdate: Update card firmware with the Angelbird CFexpress B Card Reader to maintain ongoing camera compatibility and full features.
• Overheat protection: Adaptive Power Management reduces power demand on the host camera while Host Power Loss Protection signals a safe shutdown to protect content during sudden power loss.
• Rock-solid build quality: Card and data are protected against moisture, x-ray, magnets, shock, and dust.
• Advanced Thermal Management: Protects both the card and its content from the effects of overheating.
• Warranty activation: Activate your product benefits within 30 days of purchase to receive a 3-year limited warranty with individualized customer service, technical support, and free data recovery service on both hardware and software levels.

Stable Stream sustained write performance

Demanding formats such as 8K+ or 12K+ RAW recording and continuous mode photography place heavy sustained-write demands on camera systems. Stable Stream technology keeps write speeds steady and prevents performance drop-off as card capacity is used. Consequently, you capture detailed, high-definition frames without unexpected throttling during long takes or long bursts.

Who is this card for?

The CFexpress Type B SX line targets vloggers, video enthusiasts, students, and part-time professionals who want to raise production quality without stepping into enterprise-level workflows. In short, it serves anyone serious about improving their production who needs reliable, high-speed storage for high-resolution video and continuous stills.

— Roman Rabitsch, Founder and CEO

Compatibility and support

If you are unsure which Angelbird memory card suits your camera, check the compatibility list on Angelbird’s site. Select your camera brand and model to view compatibility details across CFexpress Type A, CFexpress Type B, CFast 2.0, SDXC V60/V90, and microSD formats:

https://www.angelbird.com/compatibility/

Made in Austria

Angelbird manages design, engineering, assembly, and testing from Austria. This direct control of the supply chain supports consistent product quality and reliable performance for each card shipped.

Data recovery service

Angelbird offers a data recovery service that covers media affected by physical damage and software issues such as data or file corruption. If requested, they can extend a non-disclosure agreement to protect the privacy and confidentiality of the media’s content. Data recovery is provided free of charge within the 3-year warranty period when you activate your product benefits.

FAQ

question: Is this card suitable for long burst photography and high-frame-rate video?

Answer: Yes. The Stable Stream technology maintains a sustained write performance of 1480 MB/s across the card capacity, which supports non-stop, buffer-free burst photography and high-resolution video recording when your camera supports CFexpress Type B and the relevant formats.

question: How do I keep the card compatible with my camera over time?

Answer: Use the Angelbird CFexpress B Card Reader to apply ProductUpdate firmware. Regular firmware updates help maintain camera compatibility and ensure the card delivers its full feature set throughout its service life.

question: What protections does the card provide against environmental risks?

Answer: The card offers rock-solid build quality with protection against moisture, x-ray, magnets, shock, and dust. Additionally, Adaptive Power Management and Advanced Thermal Management help protect performance and content from overheating and power issues.

question: What warranty and recovery options are available?

Answer: Activate your product benefits within 30 days of purchase to receive a 3-year limited warranty. This includes individualized customer service, technical support, and free data recovery service on both hardware and software levels provided by the Angelbird tech team in Austria. You can also request an NDA for privacy during recovery.

question: Where can I check if this card is compatible with my camera model?

Answer: Visit Angelbird’s compatibility page at https://www.angelbird.com/compatibility/ and select your camera brand and model to view compatibility information for all Angelbird memory cards.