Average Bench: 57.3% (714th of 980)

more Based on 23,226 user benchmarks.  Models: KINGSTON SA400S37120G, KINGSTON SA400S37120, KINGSTON SA400S37120G, KINGSTON SA400S3, KINGSTON KINGSTON SA400S3, KINGSTON SA400S37240G

Average average bench

The Kingston A400 120GB averaged 42.6% 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 95.4MB/s
Avg. 4K Random Read Speed 25.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 47.4%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 99MB/s
Avg. Sequential Write Speed 189MB/s

Average Bench

(Based on 23,226 samples)
Min Avg Max
287 Read 355 440
83.3 Write 189 348
84.1 Mixed 226 332
39.5 SusWrite 99 166
48.2% 217 MB/s
Min Avg Max
14.2 4K Read 25.2 34.2
20.9 4K Write 61.6 97.8
10.9 4K Mixed 22.7 39.5
100% 36.5 MB/s
Min Avg Max
21.9 DQ Read 133 255
19.8 DQ Write 182 323
12.8 DQ Mixed 95.4 188
89.4% 137 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
31GB free
Firmware: SBFK71E0
SusWrite @10s intervals: 255 55 54 55 55 55 MB/s
Read 372
Write 298
Mixed 278
SusWrite 88
58% 259 MB/s
4K Read 29.5
4K Write 95
4K Mixed 22.4
124% 49 MB/s
DQ Read 162
DQ Write 319
DQ Mixed 138
134% 206 MB/s
85GB free (System drive)
Firmware: SBFKB1D1
SusWrite @10s intervals: 195 107 122 129 131 129 MB/s
Read 398
Write 202
Mixed 209
SusWrite 135
52% 236 MB/s
4K Read 25.1
4K Write 37.3
4K Mixed 22.3
86% 28.2 MB/s
DQ Read 57.9
DQ Write 187
DQ Mixed 179
120% 141 MB/s
23,226 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 11,452,932 SSDs tested.


AmazonUS $2030 mins
NeweggUS $232 hrs
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Typical A400 120GB Builds (Compare 20,993 builds) See popular component choices, score breakdowns and rankings.
Gaming 67%
Battle cruiser
Desktop 66%
Battle cruiser
Workstation 63%

Motherboard: Asus ROG STRIX B350-F GAMING - $87

EDIT WITH CUSTOM PC BUILDER Value: 108% - Outstanding Total price: $571

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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Solid State Drive Rankings (Price vs Performance) January 2019 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.


1 month ago.

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


12 days ago.

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

980 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 i7-8700K $360Nvidia GTX 1070 $320Samsung 850 Evo 250GB $70
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $204Samsung 850 Evo 500GB $110
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $780SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $125SanDisk Extreme 16GB $22
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