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: B0C5SF333L

Status: Sandisk 4TB Extreme Portable SSD (4TB portable SSD): Unavailable on Amazon as of 2026-11-07 17:13 UTC. Lowest-priced in-stock match (same 4TB portable SSD): SANDISK 4TB Extreme Portable SSD, $645.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary). eBay sellers may still list this model new or used.

What to buy instead: the SANDISK 4TB Extreme Portable SSD at $645.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary). It has the same 4TB portable SSD as this listing and is the lowest of the 3 same-spec offers priced in the last 24 hours.

View Current Price — $645.99 🛒 Search eBay for this model

Bottom line: The Sandisk 4TB Extreme Portable SSD: Up to 1050MB/s read, 1000MB/s write over USB-C 3.2 Gen 2; main trade-off: listed as the older model (SDSSDE61-4T00-G25B), not the current revision.

Unavailable on Amazon as of 2026-11-07 17:13 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same 4TB portable SSD: Sandisk 4TB Extreme Portable SSD — $769.99 on Amazon as of 2026-11-07 11:15 UTC (price may vary).

View Current Price — $769.99

Same 4TB portable SSD: SANDISK 4TB Extreme Portable SSD — $645.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary).

View Current Price — $645.99

Same 4TB portable SSD: Sandisk 4TB Extreme PRO Portable SSD — $1,099.99 on Amazon as of 2026-11-07 21:20 UTC (price may vary).

View Current Price — $1,099.99

Original listing (currently unavailable) → Compare to similar external storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-11-07

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Up to 1050MB/s read, 1000MB/s write over USB-C 3.2 Gen 2
✓ 4TB capacity holds long-form 4K/6K footage without swapping drives
✓ IP65 water and dust resistance for outdoor and on-set shoots
✓ Up to 3-meter drop protection, upgraded from the older 2-meter rating
✓ 256-bit AES hardware encryption with password protection included

Cons

✗ Listed as the older model (SDSSDE61-4T00-G25B), not the current revision
✗ 4TB tier carries a steep premium over 1TB and 2TB versions
✗ 1050MB/s is SanDisk internal testing; host port and cable can cut it
✗ Memory Zone app needed for automated file management features

Manufacturer description

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 using a rating × review-volume × price-fit model applied to published specs and reviews 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How fast is the SanDisk 4TB Extreme Portable SSD?

SanDisk rates it up to 1050MB/s read and 1000MB/s write over USB-C (USB 3.2 Gen 2), based on internal testing. Actual speeds depend on your host device, port, cable, and file sizes.

Is this drive waterproof and drop-proof?

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

Can I password-protect the files on it?

Yes. The drive includes password protection with 256-bit AES hardware encryption, so private footage and documents stay locked without a third-party utility.

What does the (Old Model) label mean on this listing?

This is the Sky Blue SDSSDE61-4T00-G25B revision with updated firmware, sold alongside newer SanDisk Extreme revisions. Check the product listing to confirm the exact part number before ordering.

Do shoppers rate this drive well?

Yes. It is highly regarded by shoppers, with one of the larger review counts in the portable SSD category.

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	Sky Blue
Model	SDSSDE61-4T00-G25B
Warranty	5-year limited manufacturer warranty
UnitCount	1
ReleaseDate	2023-05-22T00:00:01Z
Manufacturer	Sandisk Technologies, Inc.
ItemPartNumber	SDSSDE61-4T00-G25B

Hardware benchmark data

Ready to buy?

Amazon shows no buyable offer for Sandisk 4TB Extreme Portable SSD at the last check. The closest in-stock match with the same 4TB portable SSD is Sandisk 4TB Extreme Portable SSD. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $769.99