SanDisk Extreme PRO CFexpress 4.0 Type B Memory Card, 400GB

SanDisk Extreme PRO CFexpress 4.0 Type B 400GB Memory Card

The SanDisk Extreme PRO CFexpress 4.0 Type B 400GB Memory Card is a PCIe Gen4 professional media card built for high-resolution photo and cinema workflows. It delivers sequential read speeds up to 3700 MB/s, write speeds up to 3500 MB/s, and a 900 MB/s minimum sustained write speed for demanding camera recording applications.

Designed for filmmakers, cinematographers, photographers, and production teams, this 400GB CFexpress Type B card supports compatible workflows recording 4K, 6K, 8K, and up to 12K video. Its high transfer speeds also help shorten media offloads when paired with a compatible CFexpress Type B reader and host system. Intelligent SmartIdle technology reduces power consumption by entering a lower-power state when a compatible camera is idle.

The card uses the PCIe Gen4 interface and is compatible with supported cinema cameras, full-frame mirrorless cameras, select DSLR cameras, professional camcorders, and CFexpress Type B card readers. Its durable construction is tested for drops up to 16.4 feet and bending forces up to 70 newtons. SanDisk backs the card with a lifetime limited warranty in supported regions.

Key Features

• 400GB Storage Capacity: Provides high-capacity removable storage for professional still photography and high-resolution video production.
• PCIe Gen4 Performance: Uses a high-bandwidth interface designed for demanding CFexpress Type B recording and transfer workflows.
• Up to 3700 MB/s Read Speed: Accelerates media transfers and post-production workflows when paired with compatible hardware.
• Up to 3500 MB/s Write Speed: Supports high-data-rate capture for professional cameras and cinema production applications.
• 900 MB/s Minimum Sustained Write: Maintains consistent write performance during demanding continuous recording workloads.
• Up to 12K Video Support: Supports compatible camera workflows ranging from 4K through 12K resolution.
• SmartIdle Technology: Helps reduce unnecessary power consumption and heat by entering a lower-power state when supported equipment is idle.
• Durable Construction: Withstands tested drops up to 16.4 ft and bending forces up to 70 newtons.

Technical Specifications

• Capacity: 400GB
• Form Factor: CFexpress Type B
• Interface: PCIe Gen4
• Sequential Read Performance: Up to 3700 MB/s
• Sequential Write Performance: Up to 3500 MB/s
• Minimum Sustained Write Speed: 900 MB/s
• Supported Video Resolution: Up to 12K with compatible devices and recording configurations
• Power Management: Intelligent SmartIdle technology
• Drop Protection: Tested for drops up to 16.4 ft
• Bend Resistance: Up to 70 newtons
• Compatibility: Compatible cinema cameras, mirrorless cameras, select DSLR cameras, professional camcorders, and CFexpress Type B card readers
• Operating Temperature: 32 to 113°F
• Storage Temperature: -4 to 176°F
• Dimensions: 1.17 x 1.52 x 0.15"
• Weight: Approximately 0.02 lb
• Model Number: SDCFEB-400G-GN4NN
• Warranty: Lifetime limited warranty in supported regions

What's In the Box

• SanDisk Extreme PRO CFexpress 4.0 Type B Card, 400GB