Average Bench: 61.3% (789th of 1071)

more Based on 166,392 user benchmarks.  Models: KINGSTON SA400S37120G, KINGSTON SA400S37120, KINGSTON SA400S37120G, KINGSTON SA400S3, KINGSTON KINGSTON SA400S3, KINGSTON SA400S37240G

Above average average bench

The Kingston A400 120GB averaged 38.7% 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 93.3MB/s
Avg. 4K Random Read Speed 27.1MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 51.2%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 98.5MB/s
Avg. Sequential Mixed IO Speed 232MB/s

Average Bench

(Based on 166,392 samples)
Min Avg Max
289 Read 405 500
51 Write 248 415
24.2 Mixed 232 376
37.4 SusWrite 98.5 248
54.5% 246 MB/s
Min Avg Max
3.11 4K Read 27.1 37.6
10.7 4K Write 61 99.1
3.6 4K Mixed 25.2 41.6
106% 37.8 MB/s
Min Avg Max
36.9 DQ Read 151 247
15.6 DQ Write 176 336
9.48 DQ Mixed 93.3 186
89.8% 140 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
108GB free
Firmware: SBFK10D7
SusWrite @10s intervals: 185 116 72 73 89 72 MB/s
Read 464
Write 423
Mixed 330
SusWrite 101
74% 330 MB/s
4K Read 30.8
4K Write 74.9
4K Mixed 29.1
124% 44.9 MB/s
DQ Read 313
DQ Write 320
DQ Mixed 189
177% 274 MB/s
34GB free
Firmware: SBFK71E0
SusWrite @10s intervals: 257 56 56 56 56 56 MB/s
Read 389
Write 200
Mixed 276
SusWrite 89.6
53% 239 MB/s
4K Read 26.7
4K Write 76.2
4K Mixed 22.4
110% 41.8 MB/s
DQ Read 163
DQ Write 320
DQ Mixed 132
131% 205 MB/s
36GB free (System drive)
Firmware: SBFK71E0
SusWrite @10s intervals: 112 29 8.5 66 55 13 MB/s
Read 391
Write 266
Mixed 276
SusWrite 47.2
54% 245 MB/s
4K Read 26.6
4K Write 71.4
4K Mixed 22.8
107% 40.3 MB/s
DQ Read 162
DQ Write 107
DQ Mixed 11.8
42% 93.7 MB/s
166,392 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 63,159,084 SSDs tested.


AmazonUS $1610 mins
EbayUS $3518 mins
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Typical A400 120GB Builds (Compare 8,786 builds) See popular component choices, score breakdowns and rankings.
Gaming 29%
Desktop 79%
Workstation 27%

Motherboard: Asus PRIME A320M-K - $65

EDIT WITH CUSTOM PC BUILDER Value: 79% - Very good Total price: $443

Popular A400 120GB 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.

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How it works

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  • - 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.
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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

Added n/a ago.

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16 months ago.

budget better to skimp on a cs900


3 years ago.

Very slow SSD wish I never bought it


12 months ago.

120GB is low count limited, but Pretty fine for basic FHD, high textures loadout gaming :)


3 years ago.

My bios never recognised that disk even though it worked with the Samsung 840 Evo and 850 Evo. Bad choise.


2 years ago.

very low write speeds about 50MB/S


2 years ago.

It sais 500mb read and its like 50. Wtf?


10 months ago.

poor life time...30 days drop to 97%


2 years ago.

It's cheap, the performance and capacity is cheap.


4 years ago.

It's not bad,but doesn't have TRIM support...


2 years ago.

It is perfect for a laptop drive, not so much for a gaming PC. The low capacity on this drive also makes it a very poor game drive. On the flip side, boot times are 2-3x as fast as a traditional hard drive.


3 years ago.

The most basic SSD par excellence, useful to improve performance with little money expenditure.


3 years ago.

Its okay for a budget SSD and for just storing the OS and nothing else on it, but you may as well spend slightly more money for more space and faster speeds.


3 years ago.

Horrible SSD, uses a controller with a known reputation for failing, and is more expensive than significantly better SSDs, like the WD Green, SU650, and L5 Lite 3D


19 months ago.

its a low end one, pay for what ya get and you really dont get much

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

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