Packaging & Contents Dimensions & Weight Build Quality CrystalDiskMark Benchmark Speed Test ATTO Benchmark Speed Test AS-SSD Benchmark Speed Test Conclusion

Packaging & Contents

The Adata S102 Pro ships on a small piece of card with a plastic bubble housing the drive. On the front of the package we found details of the lifetime warranty, download instructions for Adatas free flash drive software package and a read speed rating of up to 100 MB/s. We did not bother downloading the software as we have found that freeware alternatives such as SycnBack for backups and TrueCrypt for encryption are generally far superior to the bloated software packages that often ship with flash drives. No write speed rating was indicated on the drive.

Adata S102 Pro USB 30 16GB Box Front
Adata S102 Pro USB 30 16GB Box Back

Dimensions & Weight

The S102 Pro measures 6.2cm long, 1.9cm wide and 1.1cm high. The Adata is smaller than average for a flash drive but due to its width it may still obstruct adjacent ports on a computer. You might need to get an extension cable if you have a lot of devices connected to the same cluster of USB ports on your PC. Weighing in at 13 grams the S102 Pro is lighter than average.

Adata S102 Pro USB 30 16GB Length Ruler

Build Quality

The Adata S102 Pro has an aluminium shell encasing it which gives it a good solid feel. The cap can be conveniently clipped onto the back of the drive while the drive is in use but it does not clip on particularly tightly leaving it at risk of loss. Unfortunately, unlike on most flash drives, there is no LED to indicate whether or not the drive is in use. There is a small secure hole at the back of the drive where you can attach a keychain.

Adata S102 Pro USB 30 16GB Front
Adata S102 Pro USB 30 16GB Back

Test System

The test rig was a high end Core-i7 workstation kitted out with a 256GB Solid State drive and 16GB of RAM. The system was designed to be overclocked to 5GHZ but for the benchmarks, only the stock frequencies of 1.6GHz idle, 3.4GHz active and 3.8GHz turbo boost were used.
Motherboard ASUS P8Z68-V GEN 3
RAM Corsair Vengeance 16GB Dual Channel DDR3 (CML16GX3M4A1600C9)
Fixed Drive Corsair Performance Pro 256GB
CPU Intel Core i7-2600K
Operating System Windows 7

CrystalDiskMark Speed Test[FAQ]

CrystalDiskMark is a free disk benchmarking utility that is very simple to use. It takes eight measurements: the read and write speeds in megabytes per second (MBps) for sequential, 512KB, random 4KB and 4KB parallel disk operations. There are more screenshots from this benchmark posted on the web than any other, probably due to its clean and simple display. There is further information, including instructions on how to benchmark your own drives, on the CrystalDiskMark wiki page.

CrystalDiskMark Score

The S102 Pro scored 90/23 MB/s in the sequential read/write tests. These speeds are average for a USB 3.0 drive. The performance profile for this drive favours reading over writing but overall the balance is acceptable.

Crystaldiskmark Benchmark

ATTO Disk Benchmark[FAQ]

The Atto Disk Benchmark has probably been around for longer than any other disk benchmarking software, and you can tell from its dated interface! The utility was designed to measure regular disk drive performance but it's more than up to the task of measuring both USB flash drive and SSD speeds as well. The utility measures disk performance rates for various sizes of file and displays the results in a bar chart showing read and write speeds at each file size. The results are displayed in megabytes per second (MBps). There is further information, including instructions on how to benchmark your own drive, on the Atto wiki page.
ATTO Benchmark

ATTO Score

The ATTO results for the S102 Pro are broadly in line with the CrystalDiskMark scores and at 90/23 MB/s come in just under Adatas claimed read/write speeds of 100/25 MB/s.

AS SSD Real World Copy Speed[FAQ]

The AS SSD benchmarking program was recently developed specifically for benchmarking SSD's. The utility is able to take several measurements that are well suited to solid state drives. One of the tests, ISO copy, is also relevant to slower storage devices including flash drives. The ISO copy test places two large 500MB files in a folder on the drive and then times how long it takes to copy the folder to another location on the same drive. The result is reported in both MBps and time taken. It's a real-world test that gauges a drives ability to read and write at the same time. Drives that have a good balance between their read and write speed fare relatively well on this test. There is further information, including instructions on how to use it to benchmark your own drive, on the AS SSD wiki page.

Real World Copy Speed Score

This test shows that the S102 would take 65.93 seconds to create a copy of a large 1GB video file. Generally flash drives complete this test at roughly half their sequential write rates. The S102 performed relatively very well in this test.

AS-SSD Copy Benchmark


The Adata S102 Pro is a reasonable flash drive. Physically it has a reasonably compact form unlike its older sibling the N005 Nobility. In terms of performance the drive is around average and in terms of price it's also average. There are no obvious problems in the drive's performance profile. Overall the drive is ok but there are better bargains to be had at this time.

Original Review by:  
Updated 11 years ago.  
Adata S102 Pro USB 30 16GB Front

Average Bench: 16.7% (286th of 639)

Based on 1,656 user benchmarks.  Device: VID 125f PID 312b Model: ADATA USB Flash Drive

The Adata S102 Pro is a reasonable flash drive. Physically it has a reasonably compact form unlike its older sibling the N005 Nobility. In terms of performance the drive is around average and in terms of price it's also average. There are no obvious problems in the drive's performance profile. Overall the drive is ok but there are better bargains to be had at this time. [Aug '12 USBFlashPro]

Poor: 8%Average: 16.7% Great: 27%

Terrible average bench

The Adata S102 Pro USB 3.0 16GB averaged 83.3% 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 Mixed IO Speed 0.49MB/s
Avg. 4K Random Read Speed 4.21MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the Adata S102 Pro USB 3.0 16GB is just 19.5%. This is a relatively narrow range which indicates that the Adata S102 Pro USB 3.0 16GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 17.1MB/s
Avg. Sequential Write Speed 19.6MB/s

Average Bench

(Based on 1,656 samples)
Min Avg Max
23.3 Read 69.4 130
4 Write 19.6 26.6
6.02 Mixed 17.1 30.2
10.6 SusWrite 20.6 26.6
34.5% 31.7 MB/s
Min Avg Max
0.1 4K Read 4.21 8.48
0 4K Write 0.36 0.99
0 4K Mixed 0.49 1.49
44.6% 1.69 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
14GB free, PID 312b
Operating at USB 3.0 Speed
SusWrite @10s intervals: 18 19 22 23 22 23 MB/s
Read 103
Write 1.5
Mixed 7.7
SusWrite 21.3
29% 33.3 MB/s
4K Read 5.6
4K Write 0.8
4K Mixed 0.6
68% 2.33 MB/s
1,656 MORE »
How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute

Welcome to our 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 value for money upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware
USB Flash Drive Rankings (Price vs Performance) July 2024 USB Rankings

We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]


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.


Meeting the Challenge of High-Performance Value...

ADATA S102 USB 3.0 flash drive series has evolved. The S102 Pro continues with the finely textured texture of aluminum alloy casing of the S102, but with performance increased to a maximum read speed of 100MB per second. Letting you enjoy the thrill of high speed transmission, ADATA provides a feeling of luxury at a highly competitive price.

Added 11 years ago.

Good (edit your comment) Add link

7 years ago.

Died on the 9th use. Costs more to ship to Taiwan for lifetime warranty, than getting another drive from someone else. It's hard to like a dead product which died with very very little use.


$8.99 - on Sale for $13.99 - $5 rebate. Shipping is free.


8 years ago.

good, fast and cheap, but the cap is easy to lose,


7 years ago.

Not Bad pendrive, I seen worst


7 years ago.


alcampo sant quirze... ¿Chollo? adata s102 pro usb 3.0 16 gb a 9,90€. Uno de los mejores pendrive a dia de hoy, o de los mas reputados, a un precio bueno diria yo, no se si es error por parte del alcampo en sant quirze, pero creo que es una buena oferta, asi que quien este buscando pendrive ya sabe...


7 years ago.

write-16.86 read-34.18- usb 2.0 port


7 years ago.

Terrible write speeds 25-40MB/s on USB3.0 Macbook Pro. Read speeds are excellent ~120MB/s.

Below average

11 years ago.


Read my full review and see the lab test results.


11 years ago.


Unboxing & copy test video

639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

Why does UserBenchmark have a bad reputation on reddit?
Marketers operate thousands of reddit accounts. Our benchmarks expose their spiel so they attack our reputation.
Why don’t PC brands endorse UserBenchmark?
Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
Why don’t youtubers promote UserBenchmark?
We don't pay youtubers, so they don't praise us. Moreover, our data obstructs youtubers who promote overpriced or inferior products.
Why does UserBenchmark have negative trustpilot reviews?
The 200+ trustpilot reviews are mostly written by virgin marketing accounts. Real users don't give a monkey's about big brands.
Why is UserBenchmark popular with users?
Instead of pursuing brands for sponsorship, we've spent 13 years publishing real-world data for users.
The Best
Intel Core i5-12600K $154Nvidia RTX 4060 $285WD Black SN850X M.2 2TB $140
Intel Core i5-13600K $232Nvidia RTX 4060-Ti $378WD Black SN850X M.2 1TB $89
Intel Core i5-12400F $110Nvidia RTX 4070 $499Crucial T700 M.2 4TB $342
Today's hottest deals
If you buy something via a price link, UserBenchmark may earn a commission
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback