Corsair EX400U Survivor 4TB USB4 External SSD

Name: Corsair EX400U Survivor 4TB USB4 External SSD – Up to 4000 MB/s, IP55 Rugged Drive, Plug & Play for PC, Mac & iPad – Black
Brand: Unbranded
SKU: B0FVMMCVVR

Status: Corsair EX400U Survivor 4TB USB4 External SSD (4TB portable SSD USB4): Unavailable on Amazon as of 2026-10-21 10:12 UTC. Closest in-stock match (same 4TB portable SSD USB4): Sandisk 4TB Extreme PRO Portable SSD, $1,099.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $1,099.99 🛒 Search eBay for this model

Bottom line: The Corsair EX400U Survivor 4TB USB4 External SSD is a specs-and-price decision rather than a crowd-consensus one in the external storage category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-21 10:12 UTC

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Currently unavailable on Amazon. Not the same product — 2 in-stock alternatives with matching specs:

Same 4TB portable SSD USB4: Sandisk 4TB Extreme PRO Portable SSD — $1,099.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $1,099.99

Same 4TB portable SSD USB4: Oyen Digital U35 Bolt+ 4TB USB4 — $969.00 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $969.00

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

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 →

Before you buy

Check the listed dimensions, connectors and platform compatibility against your setup before ordering
Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The CORSAIR EX400U SURVIVOR external SSD combines blazing-fast speed with heavy-duty ruggedness. Boasting USB4 bandwidth and up to 4,000MB/sec read and 3,600MB/sec write speeds, it handles everything from 4K video editing to game storage with ease. Its IP55 rated, impact-resistant housing is capable of shrugging off anything you throw at it. Not just for USB4/Thunderbolt 4 desktops and laptops, the EX400U SURVIVOR is also backward compatible with USB Type-C 3.2 and supports USB Type-C equipped iOS devices. Just plug in for instant power and speed over one cable – no drivers, no delays…

SpecPicks Verdict

SpecPicks scored Corsair EX400U Survivor 4TB USB4 External SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Compare with similarly-priced alternatives in the external storage category before committing. 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.

Key Features

Rugged, Environmentally Sealed Housing – A heavy-duty housing stands up to the rigors of daily use, with IP55 protection to keep your data safe from the elements
Unbelievable USB4 Speed on the Go – With transfer speeds rivaling internal drives – up to 40Gbps via USB4 – the EX400U SURVIVOR handles massive video files, game libraries, and creative workloads with ease
Plug-and-Play Simplicity – One USB Type-C cable handles both power and data – no drivers, no setup, just powerful storage right out of the box
Wide-Ranging Compatibility – The EX400U SURVIVOR achieves maximum performance on laptop and desktop hosts with USB4/Thunderbolt 4 ports, with additional support for iOS/iPadOS 13 and later devices with USB Type-C ports and backward compatibility with USB Type-C 3.2 *Performance varies by capacity, Maximum performance requires USB4 or higher connection
Blazing-Fast NVMe Performance – Enjoy up to 4,000MB/sec read and 3,600MB/sec write speeds to move and edit large files in record time *Performance varies by capacity, Maximum performance requires USB4 or higher connection

Full Specifications

Brand	Corsair
Color	Black
Model Name	EX400U SURVIVOR
Read Speed	4000 megabytes_per_second
Unit Count	1 Count
Form Factor	External USB Drive
Media Speed	4000 megabytes_per_second
Connectivity	USB
Model Number	CSSD-EX400US4TB
Compatibility	PC, iOS, Mac
Built-In Media	USB Cable
Hard-Drive Size	4 TB
Mfr Part Number	CSSD-EX400US4TB
Number of Items	1
Hardware Platform	Mac, PC
Installation Type	External Hard Drive
Compatible Devices	Desktop, Laptop, Tablet
Data Transfer Rate	4000 megabytes_per_second
Additional Features	Backward Compatible, Portable
Hard Disk Interface	Solid State
Full listing title	Corsair EX400U Survivor 4TB USB4 External SSD – Up to 4000 MB/s, IP55 Rugged Drive, Plug & Play for PC, Mac & iPad – Black

Ready to buy?

Amazon shows no buyable offer for Corsair EX400U Survivor 4TB USB4 External SSD at the last check. The closest in-stock match with the same 4TB portable SSD USB4 is Sandisk 4TB Extreme PRO Portable SSD. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $1,099.99