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Sandisk

SANDISK 4TB Extreme Portable SSD (Old Model) - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25

Name: SANDISK 4TB Extreme Portable SSD (Old Model) - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External
Brand: Sandisk
SKU: B08RX4QKXS
Price: 629.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$629.99

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View Current Price on Amazon → Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

Bottom line: The SANDISK 4TB Extreme Portable SSD (Old Model) - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25 is a niche pick — read recent reviews before buying in the external storage category, priced around $629.99. Compare close alternatives before committing.

The SanDisk 4TB Extreme Portable SSD (SDSSDE61-4T00-G25) puts NVMe-class speed in a pocketable shell, hitting up to 1050MB/s read and 1000MB/s write over USB-C (USB 3.2 Gen 2). That is enough headroom to offload a full card of RAW photos or edit 4K footage straight off the drive instead of copying it to a workstation first. This updated-firmware revision of the older Extreme Portable model carries SanDisk's higher durability qualification: up to 3-meter drop protection and an IP65 water and dust rating, so rain on a shoot or a fall off a camera bag is survivable. The molded carabiner loop…

SpecPicks Verdict

SpecPicks scored SANDISK 4TB Extreme Portable SSD (Old Model) - Up to 1050MB/s… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the external storage category. Sandisk's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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

✓ Easily manage files and automatically free up space with the SanDisk Memory Zone app.(5)
✓ Backed by Sandisk'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

Get NVMe solid state performance with up to 1050MB/s read and 1000MB/s write speeds in a portable, high-capacity drive(1) (Based on internal testing; performance may be lower depending on host device & other factors. 1MB=1,000,000 bytes.)
Up to 3-meter drop protection and IP65 water and dust resistance mean this tough drive can take a beating(3) (Previously rated for 2-meter drop protection and IP55 rating. Now qualified for the higher, stated specs.)
Use the handy carabiner loop to secure it to your belt loop or backpack for extra peace of mind.
Help keep private content private with the included password protection featuring 256‐bit AES hardware encryption.(3)
Easily manage files and automatically free up space with the SanDisk Memory Zone app.(5)

Full Specifications

Brand	Sandisk
Color	Black
Model Name	SanDisk Extreme Portable SSD
Read Speed	1050 megabytes_per_second
Unit Count	1 Count
Form Factor	Portable
Media Speed	1000
Connectivity	USB-C
Model Number	SDSSDE61-4T00-G25
Built-In Media	Saftey and Warranty Guide, USB-C to USB-A Adapter, USB-C to USB-C Cable
Item Type Name	External SSD
Hard-Drive Size	4 TB
Mfr Part Number	SDSSDE61-4T00-G25
Number of Items	1
Special Feature	Embrace the incredible storage potential with a whopping 4TB capacity, providing ample space to store and organize your vast collection of files, documents, and multimedia content
Hardware Platform	Mac, PC
Installation Type	Portable
Compatible Devices	Tablet
Data Transfer Rate	1050 megabytes_per_second
Enclosure Material	Information Not Available

Ready to buy?

SANDISK 4TB Extreme Portable SSD (Old Model) - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25 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.

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*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.