Average Bench: 51.2% (702nd of 927)

more Based on 7,800 user benchmarks.  Models: KINGSTON SA400S37120G, KINGSTON SA400S37120, KINGSTON SA400S37120G, KINGSTON SA400S3, KINGSTON KINGSTON SA400S3, KINGSTON SA400S37240G

Average average bench

The Kingston A400 120GB averaged 48.8% 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 Random Read Speed 22.6MB/s
Avg. Sequential Read Speed 380MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Kingston A400 120GB is 24.8%. This is a relatively narrow range which indicates that the Kingston A400 120GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 4.83MB/s
Avg. 4K Random Mixed IO Speed 3.94MB/s

Average Bench

(Based on 7,800 samples)
Min Avg Max
265 Read 380 456
71.2 Write 225 266
45.3 Mixed 255 294
63.3% 287 MB/s
Min Avg Max
4.56 4K Read 22.6 30.3
11.4 4K Write 45.7 65.7
1.13 4K Mixed 3.94 5.02
63.5% 24.1 MB/s
Min Avg Max
20.7 DQ Read 96 160
16.5 DQ Write 119 219
0.96 DQ Mixed 4.83 7.5
32.3% 73.4 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
68GB free
Firmware: SBFK71E0 Max speed: SATA 3.0 600 MB/s
Read 457
Write 265
Mixed 293
75% 338 MB/s
4K Read 22.8
4K Write 45.2
4K Mixed 4.15
64% 24 MB/s
DQ Read 158
DQ Write 178
DQ Mixed 7.06
50% 114 MB/s
81GB free
Firmware: SBFK71E0 Max speed: SATA 3.0 600 MB/s
Read 456
Write 258
Mixed 289
74% 334 MB/s
4K Read 20
4K Write 48.9
4K Mixed 3.25
60% 24 MB/s
DQ Read 134
DQ Write 202
DQ Mixed 3.78
49% 113 MB/s
57GB free
Firmware: SBFK71E0 Max speed: SATA 3.0 600 MB/s
Read 418
Write 259
Mixed 65.8
54% 248 MB/s
4K Read 28.7
4K Write 14.2
4K Mixed 4.76
57% 15.9 MB/s
DQ Read 158
DQ Write 224
DQ Mixed 1.64
54% 128 MB/s
85GB free
Firmware: SBFK71E0 Max speed: SATA 3.0 600 MB/s
Read 303
Write 257
Mixed 288
63% 283 MB/s
4K Read 24.9
4K Write 57.2
4K Mixed 4.23
74% 28.8 MB/s
DQ Read 159
DQ Write 184
DQ Mixed 7.04
51% 117 MB/s
7,800 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,791,829 SSDs tested.


AmazonUS $408 mins
EbayUS $4212 mins
NeweggUS $453 days
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Typical A400 120GB Builds (Compare 13,493 builds) See popular component choices, score breakdowns and rankings.
Gaming 68%
Battle cruiser
Desktop 65%
Battle cruiser
Workstation 62%

Motherboard: Asus PRIME B350-PLUS - $94

EDIT WITH CUSTOM PC BUILDER Value: 83% - Excellent Total price: $777

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) May 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.


Controller: Phison PS3111-S11. Flash Memory: Toshiba 15nm TLC.

Added n/a ago.

927 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.
AMD Ryzen 5 1600 $167Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $296Samsung 850 Evo 500GB $140
Intel Core i7-7700K $305AMD RX 480 $300Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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