Average Bench: 59.4% (790th of 1058)

more Based on 137,913 user benchmarks.  Models: KINGSTON SA400S37120G, KINGSTON SA400S37120, KINGSTON SA400S37120G, KINGSTON SA400S3, KINGSTON KINGSTON SA400S3, KINGSTON SA400S37240G

Average average bench

The Kingston A400 120GB averaged 40.6% 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 96.3MB/s
Avg. 4K Random Read Speed 25.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 43.3%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 97.7MB/s
Avg. 4K-64Thread Read Speed 142MB/s

Average Bench

(Based on 137,913 samples)
Min Avg Max
288 Read 396 485
88.3 Write 248 390
24.7 Mixed 236 350
41.5 SusWrite 97.7 187
54.3% 245 MB/s
Min Avg Max
10.2 4K Read 25.9 35.7
12.7 4K Write 58.3 96.2
4.2 4K Mixed 24.1 41.1
101% 36.1 MB/s
Min Avg Max
34 DQ Read 142 253
17.8 DQ Write 179 332
11.6 DQ Mixed 96.3 189
90.6% 139 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
23GB free (System drive)
Firmware: SBFK71E0
SusWrite @10s intervals: 90 113 1 136 34 4.3 MB/s
Read 349
Write 224
Mixed 268
SusWrite 63.2
50% 226 MB/s
4K Read 26.3
4K Write 76.7
4K Mixed 22.3
109% 41.8 MB/s
DQ Read 162
DQ Write 297
DQ Mixed 140
132% 200 MB/s
25GB free (System drive)
Firmware: 03070009
SusWrite @10s intervals: 79 50 41 29 65 13 MB/s
Read 410
Write 268
Mixed 165
SusWrite 46.1
49% 222 MB/s
4K Read 28.1
4K Write 50.4
4K Mixed 35.7
115% 38.1 MB/s
DQ Read 145
DQ Write 45.7
DQ Mixed 8.2
29% 66.3 MB/s
69GB free (System drive)
Firmware: 03090004
SusWrite @10s intervals: 110 42 46 46 47 47 MB/s
Read 458
Write 336
Mixed 292
SusWrite 56.3
64% 286 MB/s
4K Read 25.9
4K Write 31.7
4K Mixed 23.9
87% 27.2 MB/s
DQ Read 31.5
DQ Write 62.2
DQ Mixed 38.6
32% 44.1 MB/s
137,913 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,076,815 SSDs tested.


AmazonUS $2622 mins
EbayUS $313 mins
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Typical A400 120GB Builds (Compare 67,180 builds) See popular component choices, score breakdowns and rankings.
Gaming 47%
Desktop 81%
Aircraft carrier
Workstation 44%
Speed boat

Motherboard: Gigabyte B450M DS3H - $68

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good Total price: $575

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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  • - 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.
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Solid State Drive Rankings (Price vs Performance) September 2021 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

14 days ago.

budget better to skimp on a cs900


21 months ago.

Very slow SSD wish I never bought it


2 years ago.

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


16 months ago.

very low write speeds about 50MB/S


14 months ago.

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


2 years ago.

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


12 months ago.

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


2 years ago.

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


19 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.


20 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


2 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

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The Best.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $44
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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