Sandisk

Sandisk 4TB Extreme Portable SSD, Up to 1050MB/s Read Speeds (Old Model)

Name: Sandisk 4TB Extreme Portable SSD, Up to 1050MB/s Read Speeds (Old Model)
Brand: Sandisk
SKU: B0C59FBGG1
Price: 699.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-15

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 →

$699.99

As an Amazon Associate, SpecPicks earns from qualifying purchases.

Buy on Amazon — $699.99 Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-09-15. Price and availability subject to change.

Bottom line: The Sandisk 4TB Extreme Portable SSD, Up to 1050MB/s Read Speeds (Old Model) is a specs-and-price decision rather than a crowd-consensus one in the external storage category, priced around $699.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

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.

SpecPicks Verdict

SpecPicks scored Sandisk 4TB Extreme Portable SSD, Up to 1050MB/s Read Speeds (Old… 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. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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.

Frequently Asked Questions

How fast is the SanDisk 4TB Extreme Portable SSD?

SanDisk rates it at up to 1050MB/s read and 1000MB/s write, based on internal testing. Real speeds depend on your host device and cable; you need a USB 3.2 Gen 2 port to approach the rated figures.

Is this drive waterproof and drop-proof?

It carries an IP65 water and dust resistance rating and up to 3-meter drop protection. That is an upgrade over the earlier revision of this drive, which was rated IP55 with 2-meter drop protection.

Does it encrypt my files?

Yes. Password protection with 256-bit AES hardware encryption is included, so the encryption runs on the drive rather than taxing your computer's CPU.

What does the Old Model label mean in the title?

It indicates this is a prior product revision rather than SanDisk's newest Extreme Portable release. The specs listed here, including the IP65 and 3-meter ratings and updated firmware, apply to this version.

How well reviewed is it?

It holds a 4.6 out of 5 rating from 90,562 reviewers, one of the largest review counts in the portable SSD category. Check the product listing for current warranty terms and coverage.

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

Size	4TB
Brand	Sandisk
Color	Montery
Model	SDSSDE61-4T00-G25M
Warranty	5-year limited manufacturer warranty
UnitCount	1
ReleaseDate	2023-05-22T00:00:01Z
Manufacturer	Sandisk Technologies, Inc.
ItemPartNumber	SDSSDE61-4T00-G25M

Ready to buy?

Sandisk 4TB Extreme Portable SSD, Up to 1050MB/s Read Speeds (Old Model) 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.

Buy on Amazon — $699.99

*Price sourced from Amazon.com. Last updated 2026-09-15. Price and availability subject to change.