SanDisk Professional
SANDISK Professional 4TB PRO-G40 SSD - Up to 3000MB/s, Thunderbolt 3 (40Gbps), USB-C (10Gbps), IP68 dust/Water Resistance, External Solid State Drive - SDPS31H-004T-GBCND
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
Immerse yourself in the action with the supercharged, ultra-rugged SanDisk Professional PRO-G40 SSD. Built for compatibility with both Thunderbolt 3 and USB-C, this versatile drive enables you to efficiently collaborate across devices. Sustaining speeds up to 3000MB/s(1) read and 2500MB/s(1) write via Thunderbolt 3, the PRO-G40 SSD will power through your most demanding workflows. Bring this ultra-durable drive wherever your vision takes you– its 3m drop and 4000lb. crush resistance along with an IP68 dust- and water-resistant rating help withstand the elements in just about every location. (…
SpecPicks Verdict
SpecPicks classifies SANDISK Professional 4TB PRO-G40 SSD - Up to 3000MB/s, Thunderbolt 3… as a mid-pack option worth checking against alternatives in the external storage category, based on 1,075 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SanDisk Professional's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.0★ customer rating
- ✓ Large, well-vetted feedback pool (1,075 reviews)
- ✓ Dual-mode compatibility with both Thunderbolt 3 (40Gbps) and USB-C (10Gbps)
- ✓ Backed by SanDisk Professional's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Super-fast speeds up to 3000MB/s(1) read and 2500MB/s(1) write with Thunderbolt 3 (40Gbps), capable of moving 50GB in 1 minute or less
- Dual-mode compatibility with both Thunderbolt 3 (40Gbps) and USB-C (10Gbps)
- Ultra-rugged design with high-level IP68 dust/water resistance, 4000lb crush resistance, and 3m drop resistance (On a carpeted concrete floor.)
- Cool aluminum core pulls heat away from the internal drive to help maintain super-fast transfer speeds
- Pro-grade enclosure for premium strength you can feel
- Drive Format: Mac ready (APFS)
Full Specifications
| Brand | SanDisk Professional |
|---|---|
| Color | Information Not Available |
| Weight | 4000lb |
| Model Name | SanDisk Professional PRO-G40 SSD |
| Read Speed | 3000 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | Portable |
| Media Speed | 2500 |
| Connectivity | USB-C |
| Drive Format | Mac ready (APFS) |
| Model Number | SDPS31H-004T-GBCND |
| Compatibility | Mac |
| Built-In Media | PRO-G40 SSD, Quick Start Guide, Thunderbolt 3 (40Gbps) Cable |
| Hard-Drive Size | 4 TB |
Ready to buy?
SANDISK Professional 4TB PRO-G40 SSD - Up to 3000MB/s, Thunderbolt 3 (40Gbps), USB-C (10Gbps), IP68 dust/Water Resistance, External Solid State Drive - SDPS31H-004T-GBCND is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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