Average Bench: 60.1% (785th of 1058)

more Based on 148,425 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 39.9% 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 94.9MB/s
Avg. 4K Random Read Speed 26.4MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 45.9%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 93.5MB/s
Avg. Sequential Mixed IO Speed 234MB/s

Average Bench

(Based on 148,425 samples)
Min Avg Max
298 Read 400 490
53 Write 245 408
23.9 Mixed 234 345
38 SusWrite 93.5 186
53.9% 243 MB/s
Min Avg Max
11.6 4K Read 26.4 36
9.98 4K Write 60.5 97
4.9 4K Mixed 24.5 41.9
103% 37.1 MB/s
Min Avg Max
32.7 DQ Read 146 253
16.8 DQ Write 186 334
1.44 DQ Mixed 94.9 186
91.3% 142 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
69GB free
Firmware: S3500102
SusWrite @10s intervals: 433 426 424 425 424 189 MB/s
Read 478
Write 422
Mixed 368
SusWrite 387
93% 414 MB/s
4K Read 33.8
4K Write 118
4K Mixed 29.9
152% 60.6 MB/s
DQ Read 80.8
DQ Write 338
DQ Mixed 77.6
98% 165 MB/s
112GB free
Firmware: 03090004
SusWrite @10s intervals: 241 102 97 49 50 50 MB/s
Read 440
Write 325
Mixed 306
SusWrite 98.1
65% 292 MB/s
4K Read 34.2
4K Write 75.4
4K Mixed 42.4
146% 50.7 MB/s
DQ Read 148
DQ Write 145
DQ Mixed 117
96% 137 MB/s
34GB free
Firmware: SBFK71E0
SusWrite @10s intervals: 256 56 56 56 57 56 MB/s
Read 384
Write 311
Mixed 279
SusWrite 89.3
59% 266 MB/s
4K Read 29.9
4K Write 96.2
4K Mixed 24.4
128% 50.2 MB/s
DQ Read 164
DQ Write 340
DQ Mixed 135
136% 213 MB/s
73GB free
Firmware: SBFK71F1
SusWrite @10s intervals: 261 54 55 54 54 54 MB/s
Read 317
Write 106
Mixed 177
SusWrite 88.8
38% 172 MB/s
4K Read 27.7
4K Write 89
4K Mixed 24.6
121% 47.1 MB/s
DQ Read 162
DQ Write 317
DQ Mixed 134
132% 204 MB/s
75GB free (System drive)
Firmware: 03090004
SusWrite @10s intervals: 51 46 50 48 47 37 MB/s
Read 371
Write 51.1
Mixed 87.8
SusWrite 46.4
30% 139 MB/s
4K Read 3.1
4K Write 22.1
4K Mixed 18.2
40% 14.5 MB/s
DQ Read 111
DQ Write 46.2
DQ Mixed 93.3
65% 83.4 MB/s
148,425 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 51,171,492 SSDs tested.


AmazonUS $247 mins
EbayUS $3113 mins
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Typical A400 120GB Builds (Compare 74,218 builds) See popular component choices, score breakdowns and rankings.
Gaming 47%
Desktop 81%
Aircraft carrier
Workstation 44%
Speed boat

Motherboard: Gigabyte B450M DS3H - $70

EDIT WITH CUSTOM PC BUILDER Value: 67% - Good Total price: $663

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.

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 2022 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.

Good (edit your comment) Add link

3 months ago.

budget better to skimp on a cs900


2 years ago.

Very slow SSD wish I never bought it


1 day ago.

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


2 years ago.

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


20 months ago.

very low write speeds about 50MB/S


18 months ago.

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


3 years ago.

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


16 months ago.

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


3 years ago.

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


23 months 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.


24 months ago.

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


2 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.


2 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


6 months ago.

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

1058 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 i5-12600K $295Nvidia RTX 3060-Ti $400Crucial MX500 250GB $50
Intel Core i5-12400F $184Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i5-11600K $245Nvidia RTX 3080 $700Samsung 850 Evo 120GB $200
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $63SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $470SanDisk Ultra Fit 32GB $16
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