Description
Product Overview
The Angelbird 256GB AV PRO CFexpress 4.0 Type A Memory Card is engineered specifically for Sony Alpha and FX cameras, including models like the α1, α7 IV, α7R V, α7 S III, α9 III, FX3, FX30, and FX6. This high-performance card features VPG 400 certification, ensuring stable and consistent write performance of 800 MB/s for uninterrupted video recording and burst photography. With maximum read speeds of 1800 MB/s and write speeds of 1650 MB/s, it handles the most demanding creative workflows. The card includes advanced thermal management to protect against overheating and minimize power draw, extending camera battery life. Firmware updates are accessible via Angelbird’s Card Reader for CFexpress Type A cards, maintaining ongoing compatibility and full feature support.

Usage
This memory card is designed for professional photographers and videographers who require reliable, high-speed storage for capturing 8K RAW video, 4K high-frame-rate footage, and extended burst sequences in photography. It excels in environments such as studio shoots, outdoor events, sports photography, and documentary filmmaking where consistent performance is critical. The target audience includes content creators, journalists, and production teams using Sony mirrorless and cinema cameras, ensuring smooth operation during long recording sessions and fast data transfer for post-production workflows.
Why Choose Us
Angelbird’s AV PRO CFexpress 4.0 Type A Memory Card stands out with its dedicated engineering for Sony cameras, providing optimized compatibility and performance. The Stable Stream technology guarantees uninterrupted data flow, preventing drops in recording quality, while the advanced thermal management system safeguards against heat-related failures, ensuring data integrity. Unlike generic alternatives, this card offers direct firmware updates for long-term reliability and is built with high-quality components to withstand rigorous professional use, giving creators confidence in every shot.
Key Features
- Engineered for Sony Alpha and FX cameras with VPG 400 certification for stable 800 MB/s write performance.
- Maximum read speed of 1800 MB/s and write speed of 1650 MB/s for fast data handling.
- Stable Stream technology ensures consistent recording without interruptions during video or burst shots.
- Advanced thermal management protects the card and data from overheating while minimizing power consumption.
- Firmware update capability via Angelbird Card Reader maintains camera compatibility and feature support.
FAQ
What cameras are compatible with this memory card?
This card is designed for Sony Alpha and FX series cameras, including the α1, α1 II, α7 IV, α7R V, α7 S III, α9 III, FX3, FX30, and FX6, ensuring full functionality and performance.
How does the thermal management work?
The advanced thermal management system dissipates heat effectively during prolonged use, preventing overheating that could lead to data loss or card failure, and it also reduces power draw to help extend your camera’s battery life.
Can I update the firmware on this card?
Yes, firmware updates are available through Angelbird’s dedicated Card Reader for CFexpress Type A cards, allowing you to keep the card optimized for new camera features and compatibility.
What is the sustained write speed for video recording?
The card maintains a consistent write speed of 800 MB/s, certified by VPG 400, which is ideal for recording high-resolution video like 8K RAW without dropped frames or interruptions.
Is this card suitable for burst photography?
Absolutely, with high write speeds and Stable Stream technology, it supports extended burst sequences in photography, ensuring you capture every moment without delay or buffer issues.





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