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SanDisk SDPS31H-002T-GBCND Professional PRO-G40 2TB Portable Rugged SSD - External NVMe - Thunderbolt 3 & USB 3.2 Gen 2 Type-C
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Product Features
Technical Overview
Built on PCI Express NVMe technology, the PRO-G40 delivers sequential read speeds up to 2700 MB/s and write speeds up to 1900 MB/s when connected via Thunderbolt 3. This performance enables rapid transfer of large media files, with the capability to move 50GB of data in approximately 30 seconds.
The drive features an aluminum core that effectively dissipates heat to maintain consistent performance during extended transfers. It operates without wireless LAN capabilities, focusing instead on wired high-speed connections through its Thunderbolt 3 and USB-C interfaces.
Relevant factors for this section include Storage Capacity, Platform Supported, Maximum Read Transfer Rate, Maximum Write Transfer Rate. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The PRO-G40 stands out with its combination of enterprise-level performance and military-grade durability. Unlike standard external drives, it maintains NVMe speeds in a portable format while offering protection against the physical hazards encountered in field work, outdoor production, and mobile professional environments.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Professional-Grade Speed, Extreme Environmental Protection.
Professional-Grade Speed
With Thunderbolt 3 connectivity supporting 40Gbps bandwidth, this SSD achieves performance levels that significantly reduce wait times during file transfers, backups, and project loads.
Extreme Environmental Protection
The enclosure meets IP68 standards for dust and water resistance, withstands crushing forces up to 4000 pounds, and survives drops from up to 3 meters.
Deployment / Use Cases
This SSD excels in scenarios requiring both high-speed storage and physical resilience. Creative professionals working on location can edit directly from the drive without performance bottlenecks, while IT teams can deploy it for secure offsite backups that withstand transportation hazards.
The dual-interface design provides flexibility: use Thunderbolt 3 with compatible workstations for maximum performance, or connect via USB-C to a wider range of laptops and tablets when absolute top speed isn't required. This makes it suitable for mixed-environment workflows where different systems need access to the same data.
Content Creation & Media Production
Video editors, photographers, and audio professionals can work directly from the drive with 4K/8K media files, leveraging the fast read speeds for smooth playback and rapid project loading.
Field Data Collection & Backup
Researchers, surveyors, and field technicians benefit from the rugged design when collecting data in outdoor or industrial environments where standard drives would be at risk.
Physical Profile
Measuring 4.37" × 2.28" × 0.47" (111 × 58 × 12 mm) and weighing just 4.31 ounces, the PRO-G40 maintains a compact footprint that fits easily in camera bags, laptop cases, or toolkits. The pro-grade aluminum enclosure provides both structural strength and thermal management, with a finish designed to withstand professional use. The small dimensions make it highly portable while the robust construction ensures it can handle the rigors of daily transport.
- Width
- 2.28" (58 mm)
- Height
- 0.47" (12 mm)
- Weight
- 4.31 oz (122.30 g)
- Length
- 4.37" (111 mm)
What's in the Box
The retail package includes everything needed to immediately begin using the SSD with Thunderbolt 3 systems.
Highlights
- 2TB capacity provides ample space for large media libraries, project files, and system backups
- Thunderbolt 3 connectivity delivers up to 2700MB/s read speeds for rapid file transfers
- USB 3.2 Gen 2 Type-C compatibility ensures broad device support beyond Thunderbolt systems
- IP68-rated enclosure protects against dust, water immersion, and physical impacts
- Aluminum core design manages heat to maintain consistent performance during extended use
- Compact portable form factor (4.37" × 2.28" × 0.47") fits easily in bags and cases
- Survives drops from up to 3 meters and crushing forces up to 4000 pounds
- 5-year limited warranty provides long-term protection for your investment
- Compatible with macOS 10.13+ and Windows 10+ operating systems
- Includes Thunderbolt 3 cable for immediate high-speed connectivity
Specifications
| Specifications | |
|---|---|
| Manufacturer | Western Digital Corporation |
| Manufacturer Part Number | SDPS31H-002T-GBCND |
| Brand Name | SanDisk Professional |
| Product Line | PRO-G40 |
| Product Name | PRO-G40 SSD |
| Package Type | Retail |
| Product Type | Solid State Drive |
| Technical Information | |
| Storage Capacity | 2 TB |
| Platform Supported | PC,Mac |
| Drive Performance | |
| Maximum Read Transfer Rate | 2700 MB/s |
| Maximum Write Transfer Rate | 1900 MB/s |
| Network & Communication | |
| Wireless LAN | No |
| Interfaces/Ports | |
| Host Interface | Thunderbolt 3,USB 3.2 (Gen 2) Type C |
| Drive Interface | PCI Express NVMe |
| Physical Characteristics | |
| Rugged | Yes |
| Drive Type | External |
| External Drive Type | Portable |
| Durability | Crush Resistant,Water Resistant,Dust Resistant,Drop Protection |
| Height | 0.47" (12 mm) |
| Width | 2.28" (58 mm) |
| Length | 4.37" (111 mm) |
| Weight (Approximate) | 4.31 oz (122.30 g) |
| Miscellaneous | |
| Package Contents | PRO-G40 SSD Thunderbolt 3 (40Gbps) Cable Quick Start Guide |
| Operating System Compatibility | macOS 10.13+,Windows 10+ |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 5 Year |
User Manual
FAQ
What is the actual transfer speed I can expect from this SSD?
The PRO-G40 achieves up to 2700 MB/s read and 1900 MB/s write speeds when connected via Thunderbolt 3. With USB 3.2 Gen 2 Type-C, speeds will be lower but still significantly faster than traditional external hard drives. Real-world performance depends on your host system's capabilities and the types of files being transferred, with large sequential files achieving the highest speeds.
Is this SSD compatible with both Mac and Windows computers?
Yes, this drive is compatible with both platforms. It works with macOS 10.13 or later and Windows 10 or later. The drive comes pre-formatted in a compatible file system, though you may choose to reformat it for optimal performance with your specific operating system. The dual-interface design ensures connectivity with modern Mac and Windows systems that have either Thunderbolt 3 or USB-C ports.
How rugged is the PRO-G40 compared to standard external SSDs?
The PRO-G40 offers significantly greater protection than standard external drives. It meets IP68 standards for complete dust protection and water resistance when submerged up to 1.5 meters for 30 minutes. The enclosure withstands crushing forces up to 4000 pounds and survives drops from up to 3 meters. This military-grade durability makes it suitable for construction sites, outdoor filming, fieldwork, and other challenging environments where standard drives would fail.
What cables are included with the drive?
The package includes a Thunderbolt 3 cable that supports 40Gbps transfer speeds. This cable enables the drive's maximum performance when connected to Thunderbolt 3 ports. For USB-C connections, you can use the same cable or any standard USB-C cable, though maximum speeds will be limited by the USB 3.2 Gen 2 specification. The drive does not include a separate USB-C cable, only the Thunderbolt 3 cable.
Can I use this drive with devices that only have USB-A ports?
Not directly, as the drive features only a Type-C connector. You would need a USB-C to USB-A adapter or cable to connect to traditional USB-A ports. However, when using such adapters, transfer speeds will be limited to the capabilities of the USB-A port (typically USB 3.0 speeds up to 5Gbps). For optimal performance, connect the drive directly to Thunderbolt 3 or USB-C ports on your host device.
What warranty coverage does this SSD include?
SanDisk Professional provides a 5-year limited warranty for the PRO-G40 SSD. This warranty covers defects in materials and workmanship under normal use. The warranty period begins from the date of purchase, and you'll need to retain your proof of purchase for any potential warranty claims. This extended coverage reflects the drive's professional-grade construction and provides long-term peace of mind for your storage investment.
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