SanDisk Professional PRO-G40 4TB 3000 MB/s Thunderbolt 3 Portable SSD

Overview

The SanDisk SDPS31H-004T-GBCND is a portable solid-state drive designed to deliver high-speed external storage with a capacity of 4TB. It supports Thunderbolt 3 connections with read speeds up to 3000 MB/s and write speeds up to 2500 MB/s, making it suitable for handling large files and demanding workflows. Its rugged aluminum enclosure offers protection against drops, water, dust, and heavy pressure, ensuring reliable performance in various environments.

Key features

• Thunderbolt 3 interface provides ultra-fast data transfer for smooth editing and file management.
• USB 3.2 Gen 2 compatibility allows flexible connectivity with solid transfer speeds when Thunderbolt 3 is unavailable.
• IP68-rated enclosure protects against dust and water, enabling use in challenging conditions.
• Durable design withstands drops from up to 9.8 feet and pressure up to 4000 pounds, ideal for on-location work.
• Pre-formatted with APFS for seamless macOS integration, with easy reformatting options for Windows systems.
• Passive heat management through an aluminum core maintains consistent performance without noisy fans.
• Large 4TB capacity accommodates extensive video projects, photo libraries, and other media files.

Key specs

• Storage capacity: 4TB
• Interface: Thunderbolt 3 and USB-C 3.2 Gen 2
• Maximum read speed (Thunderbolt 3): 3000 MB/s
• Maximum write speed (Thunderbolt 3): 2500 MB/s
• Maximum read speed (USB-C 3.2 Gen 2): 1050 MB/s
• Maximum write speed (USB-C 3.2 Gen 2): 1000 MB/s
• Durability: Drop resistance up to 9.8 feet, pressure resistance up to 4000 pounds
• Ingress protection: IP68 (dust and water resistant)
• Pre-format: APFS for macOS

Connectivity and compatibility

This portable SSD connects via Thunderbolt 3 or USB-C 3.2 Gen 2 ports, offering broad compatibility with modern laptops and desktops. The Thunderbolt 3 interface unlocks the highest transfer speeds, while USB-C 3.2 Gen 2 ensures solid performance on devices without Thunderbolt support. The drive’s pre-formatting for macOS simplifies setup for Apple users, and it can be reformatted for Windows, making it versatile across platforms.

Performance and reliability

The PRO-G40’s passive cooling system uses an aluminum core to dissipate heat efficiently, preventing thermal throttling during intensive tasks. Its rugged build protects data integrity in demanding environments, whether on location or in the studio. This combination of speed and durability supports creative professionals who need dependable storage that keeps pace with their workflow.

Ideal uses and environments

This SSD is well suited for video editors, photographers, and content creators who work with large media files and require fast, portable storage. Its rugged design and water resistance make it a strong choice for fieldwork and travel, while its high capacity and speed support complex projects in professional studios or home offices.