Average Bench: 65.8% (734th of 1071)

Based on 424,288 user benchmarks.  Models: KINGSTON SA400S37240G, KINGSTON SA400S37240, KINGSTON SA400S3, KINGSTON SA400S37240G, KINGSTON KINGSTON SA400S3

Above average average bench

The Kingston A400 240GB averaged 34.2% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K-64Thread Mixed IO Speed 92.7MB/s
Avg. 4K Random Read Speed 26.7MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Kingston A400 240GB is 66.7%. This is a particularly wide range which indicates that the Kingston A400 240GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 179MB/s
Avg. Sequential Mixed IO Speed 260MB/s

Average Bench

(Based on 424,288 samples)
Min Avg Max
260 Read 414 504
96.7 Write 318 446
16.6 Mixed 260 420
58.4 SusWrite 179 432
65.3% 293 MB/s
Min Avg Max
12.1 4K Read 26.7 36.1
7.37 4K Write 56.9 106
0.4 4K Mixed 22.4 42
99.2% 35.3 MB/s
Min Avg Max
46.2 DQ Read 191 288
12.8 DQ Write 214 349
0.9 DQ Mixed 92.7 204
100% 166 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
223GB free
Firmware: SBFKB1E1
SusWrite @10s intervals: 358 217 220 221 211 222 MB/s
Read 419
Write 358
Mixed 370
SusWrite 241
78% 347 MB/s
4K Read 34.5
4K Write 85.1
4K Mixed 43.8
154% 54.5 MB/s
DQ Read 270
DQ Write 336
DQ Mixed 210
185% 272 MB/s
159GB free
Firmware: SBFKB1D1
SusWrite @10s intervals: 303 202 291 228 208 315 MB/s
Read 205
Write 96.7
Mixed 315
SusWrite 258
49% 218 MB/s
4K Read 35.6
4K Write 92.1
4K Mixed 44.2
159% 57.3 MB/s
DQ Read 270
DQ Write 334
DQ Mixed 212
185% 272 MB/s
424,288 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 63,158,347 SSDs tested.


MSRP ≈ $50 @ launch in Jan '17
AmazonUS $1816 mins
EbayUS $3423 mins
Send price feedback
Typical A400 240GB Builds (Compare 12,512 builds) See popular component choices, score breakdowns and rankings.
Gaming 44%
Speed boat
Desktop 79%
Workstation 40%
Speed boat

Motherboard: Gigabyte B450M DS3H - $86

EDIT WITH CUSTOM PC BUILDER Value: 86% - Excellent Total price: $496

Popular A400 240GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchmark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) January 2023 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC

Dramatically improves the responsiveness of your system...

Added 4 years ago.

Excellent (edit your comment) Add link

5 months ago.

Info  graphicscardhub.com/...

Recently got this SSD for my laptop and getting around 400 MB/s read and write speeds.


5 months ago.

for the price and what it give for everyday use, its perfect in the laptop as replacement


6 months ago.

died after 5 months of daily use.


4 months ago.

I had this as saily driver for almost 2 years and its excellent! recommend it!


3 months ago.

Lots of people complain about the lack of dram, but given the price in my region, this beats most competitors.


7 months ago.

Tested both, this one was way better


9 months ago.

Great physical size in cases fits just about anywhere cheap fast for price and good capacity. Would recommend.


8 months ago.

others test show me diferent result in ssd! need check this not in all pc gives a true result in ssd https://fotos.subefotos.com/2353da9eaf3f3e7eaea222619bbf0971o.jpg


14 months ago.

me voy a comprar el moto e7 por que se me rompio el celu :D


1 month ago.

Better heat dissipation due to its metal body.


3 years ago.

Has a freezing problem and needs firmware updates.


3 years ago.

could have used some DRAM, stutters when booting.


14 months ago.

More confident in the name of the brand


3 years ago.

Cheap price, fast read/write speeds, trusted brand name... whats not to like?


19 months ago.

A great value for a boot drive. The only thing that holds it back is the lack of a DRAM cache, but for the price, it is an excellent choice. I know many people who use this drive; for all of them, it has not caused a single problem.


3 years ago.

Affordable and reliable!


2 years ago.

A pretty decent SSD for a faster boot drive on a budget.


21 months ago.

With SATA-3 cables/controller/motherboard and in AHCI or Intel RST mode works just nice! Weight is really light and the case is fully aluminium. Yeah, memory type of this SSD is MLC, but still performs very well.


3 years ago.

Quite slow speeds compared to it's other slightly more expensive competition. I can't recommend it. You get what you pay for I suppose.

1071 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-13600K $320Nvidia RTX 3060-Ti $460Crucial MX500 250GB $30
Intel Core i3-12100F $98Nvidia RTX 3070 $570Samsung 850 Evo 120GB $106
Intel Core i5-12600K $233Nvidia RTX 3050 $298Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $29Corsair Vengeance LPX DDR4 3000 C15 2x8GB $50SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3200 C16 2x8GB $49SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $417SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback