SanDisk 400GB Extreme PRO CFexpress 4.0 Type B Memory Card

Overview

The SanDisk 400GB Extreme PRO CFexpress 4.0 Type B Memory Card offers 400GB of high-speed storage on the PCIe 4.0 bus, giving photographers and filmmakers the capacity and throughput to shoot raw 12K, 8K, 6K, and 4K video alongside raw and JPEG stills and continuous shutter bursts. It delivers maximum read speeds of up to 3700 MB/s and maximum write speeds of up to 3500 MB/s, so critical moments are never held up by a slow card. Rugged construction with high bend and drop resistance keeps this Extreme PRO card working reliably in demanding shooting environments, and it is backed by the VPG-800 and VPG-400 standards for guaranteed sustained write performance.

PCIe 4.0 Read and Write Speeds

PCIe 4.0 technology enables read speeds of up to 3700 MB/s and write speeds of up to 3500 MB/s, fast enough to capture 12K (12,288 x 6480), 8K (7680 x 4320), 6K (6144 x 3160), and 4K (4096 x 2160) video, plus raw and JPEG stills and continuous shutter bursts.

Sustained Write Performance

A minimum sustained write speed of 900 MB/s enables consistent performance for long recording sessions, helping prevent dropped frames and maintaining smooth, seamless capture.

Video Performance Guarantee Support

This card supports the VPG-800 and VPG-400 standards, guaranteeing minimum sustained write speeds of 800 MB/s or 400 MB/s for flawless footage capture.

SmartIdle Overheating Protection

SmartIdle technology helps prevent overheating during demanding sessions by intelligently entering a low-power mode whenever the compatible camera is idle, so you can shoot longer with efficiency on your side.

Rugged Build and Temperature Resistance

Built to endure the realities of production, this card withstands drops up to 5m and resists bends up to 70N, and operates reliably across a temperature range of 0 to 45°C.