Average Bench: 60.4% (759th of 1037)

more Based on 105,105 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 39.6% 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 101MB/s
Avg. 4K Random Read Speed 25.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 44.2%. 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. 4K-64Thread Read Speed 139MB/s

Average Bench

(Based on 105,105 samples)
Min Avg Max
291 Read 393 483
57.3 Write 236 384
84.8 Mixed 239 347
44.5 SusWrite 98.5 198
53.6% 242 MB/s
Min Avg Max
3.5 4K Read 25.7 37
17.9 4K Write 59.9 95.4
6.8 4K Mixed 26 41.9
104% 37.2 MB/s
Min Avg Max
22.7 DQ Read 139 252
20.6 DQ Write 180 333
15.4 DQ Mixed 101 187
92.8% 140 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
81GB free (System drive)
Firmware: 03090004
SusWrite @10s intervals: 187 45 48 49 50 50 MB/s
Read 481
Write 322
Mixed 308
SusWrite 71.5
66% 296 MB/s
4K Read 33.8
4K Write 64.8
4K Mixed 40.4
137% 46.3 MB/s
DQ Read 146
DQ Write 131
DQ Mixed 113
92% 130 MB/s
63GB free (System drive)
Firmware: SBFK71E0
SusWrite @10s intervals: 213 38 55 50 4.4 54 MB/s
Read 401
Write 304
Mixed 292
SusWrite 68.8
59% 267 MB/s
4K Read 30.4
4K Write 96.3
4K Mixed 23.3
127% 50 MB/s
DQ Read 162
DQ Write 301
DQ Mixed 132
128% 198 MB/s
22GB free (System drive)
Firmware: SBFK
SusWrite @10s intervals: 209 54 48 41 49 47 MB/s
Read 306
Write 295
Mixed 173
SusWrite 74.6
47% 212 MB/s
4K Read 16.2
4K Write 83.6
4K Mixed 26.4
103% 42.1 MB/s
DQ Read 161
DQ Write 290
DQ Mixed 110
116% 187 MB/s
41GB free
Firmware: R0105A
SusWrite @10s intervals: 384 41 63 32 39 28 MB/s
Read 443
Write 374
Mixed 374
SusWrite 97.9
72% 322 MB/s
4K Read 24
4K Write 67.9
4K Mixed 1
74% 31 MB/s
DQ Read 156
DQ Write 89.8
DQ Mixed 1.1
34% 82.4 MB/s
105,105 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,855,034 SSDs tested.


AmazonUS $2515 mins
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Typical A400 120GB Builds (Compare 32,789 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 81%
Aircraft carrier
Workstation 46%

Motherboard: Gigabyte B450M DS3H - $73

EDIT WITH CUSTOM PC BUILDER Value: 84% - Excellent Total price: $482

Popular A400 120GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) September 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.


9 months ago.

Very slow SSD wish I never bought it


17 months ago.

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


5 months ago.

very low write speeds about 50MB/S


2 months ago.

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


22 months ago.

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


27 days ago.

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


20 months ago.

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


7 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.


11 days ago.

Offers poor performance over other SSDs at around the same price point with low read and write speeds and very small capacity.


8 months ago.

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


20 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.


17 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

1037 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 i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $299Nvidia RTX 3080 $700Samsung 860 Evo 250GB $44
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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