Average Bench: 57.3% (811th of 1058)

more Based on 134,943 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 88MB/s
Avg. 4K Random Read Speed 25.6MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 44%. This is a relatively wide range which indicates that the Kingston A400 120GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 98.2MB/s
Avg. 4K-64Thread Read Speed 134MB/s

Average Bench

(Based on 134,943 samples)
Min Avg Max
288 Read 382 480
37.6 Write 228 384
19.7 Mixed 224 354
40.6 SusWrite 98.2 193
51.7% 233 MB/s
Min Avg Max
6.72 4K Read 25.6 36.4
9.09 4K Write 56.3 95.9
4.8 4K Mixed 23 42.1
98.1% 35 MB/s
Min Avg Max
28.8 DQ Read 134 243
12.2 DQ Write 162 324
10.8 DQ Mixed 88 182
83% 128 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
50GB free (System drive)
Firmware: 03070009
SusWrite @10s intervals: 55 52 51 47 52 53 MB/s
Read 332
Write 79.7
Mixed 89.4
SusWrite 51.8
30% 138 MB/s
4K Read 32.4
4K Write 43.3
4K Mixed 36.9
119% 37.5 MB/s
DQ Read 140
DQ Write 51
DQ Mixed 58.2
53% 83 MB/s
28GB free (System drive)
Firmware: SBFK61K1
SusWrite @10s intervals: 140 56 80 34 44 57 MB/s
Read 436
Write 271
Mixed 318
SusWrite 68.5
61% 274 MB/s
4K Read 31.3
4K Write 21.8
4K Mixed 1.1
60% 18.1 MB/s
DQ Read 223
DQ Write 34.6
DQ Mixed 25.1
45% 94.3 MB/s
134,943 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 44,074,796 SSDs tested.


AmazonUS $2817 mins
EbayUS $3039 mins
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Typical A400 120GB Builds (Compare 61,474 builds) See popular component choices, score breakdowns and rankings.
Gaming 47%
Desktop 80%
Aircraft carrier
Workstation 44%
Speed boat

Motherboard: Gigabyte B450M DS3H - $69

EDIT WITH CUSTOM PC BUILDER Value: 70% - Very good Total price: $579

Popular A400 120GB compatible motherboards:

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Solid State Drive Rankings (Price vs Performance) June 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

3 months ago.

budget better to skimp on a cs900


18 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.


13 months ago.

very low write speeds about 50MB/S


11 months ago.

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


2 years ago.

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


9 months ago.

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


2 years ago.

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


16 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.


17 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

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 i5-11400F $220Nvidia RTX 3070 $500Crucial MX500 250GB $40
Intel Core i5-11600K $259Nvidia RTX 3060-Ti $400Samsung 850 Evo 120GB $78
Intel Core i7-11700K $380Nvidia RTX 3080 $700Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $95SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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