Skip to main content
Kingston A400 120G Internal SSD M.2 2280 SA400M8/120G - Increase Performance

Kingston A400 120G Internal SSD M.2 2280 SA400M8/120G - Increase Performance

Status: Kingston A400 120G Internal SSD M.2 2280…: Unavailable on Amazon as of . Closest in-stock match (same NVMe): Kingston A400 240G Internal SSD M.2 2280…, $149.00 on Amazon as of 2026-10-06 14:15 UTC (price may vary). eBay sellers may still list this model new or used.

Bottom line: The Kingston A400 120G Internal SSD M.2 2280 SA400M8/120G: M.2 2280 form factor fits most modern laptop and desktop slots; main trade-off: 120GB fills fast if you store games, video, or large photo libraries.

Unavailable on Amazon as of

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

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

Same NVMe: Kingston A400 240G Internal SSD M.2 2280… — $149.00 on Amazon as of 2026-10-06 14:15 UTC (price may vary).

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ M.2 2280 form factor fits most modern laptop and desktop slots
  • ✓ No moving parts - more durable than the hard drive it replaces
  • ✓ 120GB is sized right for a Windows boot drive plus core apps
  • ✓ A400 line offers multiple capacities if you outgrow 120GB

Cons

  • ✗ 120GB fills fast if you store games, video, or large photo libraries
  • ✗ Label on the item can vary between shipments
  • ✗ Kingston does not publish sequential read/write specs in the listing
  • ✗ No listed DRAM cache, so sustained large transfers can slow

Manufacturer description

The Kingston A400 120GB M.2 2280 SSD (SA400M8/120G) is a straightforward way to pull an aging laptop or desktop off a mechanical hard drive without spending much. Kingston builds this drive around the M.2 2280 form factor, so it drops into the same slot most systems from the last several years already have free, and the 120GB capacity is sized for a boot volume: Windows, your everyday applications, and the handful of games or projects you actually launch each week. What you notice first is start-up time. Kingston positions the A400 for fast boots, application loading, and file transfers, and…

SpecPicks Verdict

SpecPicks scored Kingston A400 120G Internal SSD M.2 2280 SA400M8/120G using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & 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 ssds & 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

Will the Kingston A400 M.2 fit my laptop?

It uses the M.2 2280 form factor - 22mm wide, 80mm long - which is the most common M.2 size in laptops and desktop motherboards. Check that your machine has a free M.2 2280 slot and confirm slot keying against the product listing before ordering.

Is 120GB enough space for Windows?

Yes for a boot drive. 120GB comfortably holds Windows, drivers, and your everyday applications. Kingston positions the A400 for applications or as a hard drive replacement, and offers the line in multiple capacities if you need room for large game or media libraries.

How much faster is this than my current hard drive?

Kingston lists faster start-up, application loading, and file transfers as the core benefit. Swapping a mechanical hard drive for any SSD is typically the largest responsiveness gain an older system can get. Check the product listing for Kingston's published read and write figures.

Is the Kingston A400 reliable enough for a daily-driver machine?

Kingston states the A400 is more reliable and durable than a hard drive, since there are no moving parts to fail from shock or wear.

Why does the drive label look different from the product photos?

Kingston notes directly in the product features that the label on the item can vary. The drive itself is the same SA400M8/120G model; only the printed label artwork differs between production runs.

Key Features

  • Fast start up, loading and file transfers
  • More reliable and durable than a hard drive
  • Multiple capacities with space for applications or a hard drive replacement
  • Label on the item can vary

Full Specifications

BrandKingston
ColorMulticolor
Weight120g
Special FeatureDurable, Shock Resistant
Installation TypeInternal Hard Drive
Compatible DevicesDesktop
Hard Disk InterfaceSolid State
Hard Disk DescriptionSolid State Drive
Hard Disk Form Factor2.5 inches
Connectivity TechnologySATA
Digital Storage Capacity120 GB

Ready to buy?

Kingston A400 120G Internal SSD M.2 2280 SA400M8/120G - Increase Performance is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related SSDs & Storage

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →