Average Bench: 57.5% (765th of 1016)

more Based on 68,075 user benchmarks.  Models: KINGSTON SA400S37120G, KINGSTON SA400S37120, KINGSTON SA400S37120G, KINGSTON SA400S3, KINGSTON KINGSTON SA400S3, KINGSTON SA400S37240G

Average average bench

The Kingston A400 120GB averaged 42.5% 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 89.3MB/s
Avg. 4K Random Read Speed 25.8MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 40.4%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 87.7MB/s
Avg. Sequential Write Speed 213MB/s

Average Bench

(Based on 68,075 samples)
Min Avg Max
293 Read 373 479
56.4 Write 213 361
82.7 Mixed 224 332
36.7 SusWrite 87.7 160
49.7% 224 MB/s
Min Avg Max
7.45 4K Read 25.8 36.1
23.3 4K Write 59 92.2
9.84 4K Mixed 24.5 40.3
102% 36.4 MB/s
Min Avg Max
30.5 DQ Read 133 246
34.5 DQ Write 159 325
11.7 DQ Mixed 89.3 187
83.1% 127 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
41GB free (System drive)
Firmware: SBFK71E0
SusWrite @10s intervals: 77 142 50 17 7.8 54 MB/s
Read 286
Write 64.2
Mixed 281
SusWrite 58
38% 172 MB/s
4K Read 30.4
4K Write 91.4
4K Mixed 23.6
125% 48.5 MB/s
DQ Read 162
DQ Write 295
DQ Mixed 135
129% 197 MB/s
0GB free (System drive)
Firmware: 03090004
SusWrite @10s intervals: 185 110 42 44 45 44 MB/s
Read 419
Write 335
Mixed 276
SusWrite 78.2
62% 277 MB/s
4K Read 23.4
4K Write 50.5
4K Mixed 33.4
105% 35.8 MB/s
DQ Read 148
DQ Write 143
DQ Mixed 116
95% 136 MB/s
15GB free
Firmware: SBFKB1D1
SusWrite @10s intervals: 128 31 46 35 55 15 MB/s
Read 358
Write 131
Mixed 158
SusWrite 51.7
38% 175 MB/s
4K Read 24.3
4K Write 80.9
4K Mixed 25.9
113% 43.7 MB/s
DQ Read 153
DQ Write 132
DQ Mixed 93.3
83% 126 MB/s
89GB free (System drive)
Firmware: 03090004
SusWrite @10s intervals: 51 52 52 52 51 51 MB/s
Read 289
Write 57.8
Mixed 90.2
SusWrite 51.7
26% 122 MB/s
4K Read 30.3
4K Write 42.1
4K Mixed 4.9
74% 25.8 MB/s
DQ Read 135
DQ Write 46.9
DQ Mixed 95.5
69% 92.4 MB/s
68,075 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,624,497 SSDs tested.


AmazonUS $2518 mins
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Typical A400 120GB Builds (Compare 26,164 builds) See popular component choices, score breakdowns and rankings.
Gaming 55%
Desktop 63%
Workstation 55%

Motherboard: Gigabyte B450M DS3H - $68

EDIT WITH CUSTOM PC BUILDER Value: 87% - Excellent Total price: $435

Popular A400 120GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) January 2020 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.

Very slow SSD wish I never bought it


8 months ago.

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


13 months ago.

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


12 months ago.

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


2 days ago.

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


11 months 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.


9 months 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

1016 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 i5-9400F $155Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $43
Intel Core i5-9600K $218Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2060 $340Samsung 850 Pro 512GB $204
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $42Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $643SanDisk Ultra Fit 32GB $16
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