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A-DATA PD17, PD18, and PD19 Mini USB Flash Drives Review
Date Published:
04-21-2008
Written By:
Sludge
Edited By:
Diceman
Provided By:
A-DATA
Where to Buy:
A-DATA
Discuss Article:
VH Forum link
Pages: 1 2

A Closer Look:


Retail front

Retail rear

They are tiny

    Each of the flash drives are packaged in small, plastic blister packs that are heat-sealed around all the edges. UGH! Two of the flash drives are from the Nobility series and one is from the Classic series. The three A-DATA drives I have here are Windows Vista compatible, but the two from the Nobility line support Vista's ReadyBoost. Each one is 1GB in size, but they are designed differently from each other. I will start with the PD17 first and go in order and finish up with the PD19.


PD17 front

Back side

Ready for action

 The A-DATA USB Flash Drive PD17 is in the shape of a Quadrilateral, with the one end open allowing it to be attached to a lanyard or key ring. On what I will call the top of the drive is a small, knurled piece of black plastic that is used to push the USB plug from the body of the PD17. When the USB plug is in the storage position, a simple push forward on the knurled slide will push the USB plug from its home. When pushed all the way forward, it stays locked in place by friction.


PD18 front view

All parts shown

Ready for action

    Next up is the A-DATA USB Flash Drive PD18, and this drive is the typical rectangle shape, just smaller than normal. The PD18 has a built-in lanyard with a cap attached. In storage mode, the USB plug is tucked away in the body of the flash drive. To remove the USB plug, pull on the end cap with the lanyard attached and the plug will be exposed. Use the cap on the other end of the lanyard to capture the main housing of the PD18 so it won't get lost.


PD19 front view

Flipping open

Lock and loaded

    The last flash drive in the bunch is the PD19, which is also rectangle shaped but also very thin. One end has an opening for a lanyard or key ring. The main feature to the PD19 is the way the USB plug is exposed. About mid-way on the drive is a pivot point that allows the center of the main body to rotate 180° and then lock into place. This rotation exposes the plug, allowing the flash drive to be used.

Testing:

    SiSoftware Sandra was used for testing and was provided to use from Jagged Online. The Removable Storage benchmark was used on the A-DATA USB Flash drives.

PD17 Benchmark Results
Combined Index : 2503 operation(s)/min
Endurance Factor : 37.00
Results Interpretation : Higher index values are better.
Performance Test Status
Run ID : WOPER on Wednesday, April 16, 2008 at 12:16:01 AM
Platform Compliance : Win32 x86
System Timer : 2.4GHz
512B Files Test
Read Performance : 23335 operation(s)/min (194 kB/sec, 1x)
Write Performance : 813 operation(s)/min (6938 bytes/sec)
Delete Performance : 2728 ops/minute
File Fragments : 1.0
Combined Index : 2237 ops/minute
32kB Files Test
Read Performance : 13008 operation(s)/min (6938 kB/sec, 46x)
Write Performance : 1608 operation(s)/min (858 kB/sec, 5x)
Delete Performance : 2730 ops/minute
File Fragments : 1.0
Combined Index : 3389 ops/minute
256kB Files Test
Read Performance : 2949 operation(s)/min (12582 kB/sec, 83x)
Write Performance : 597 operation(s)/min (2547 kB/sec, 16x)
Delete Performance : 2507 ops/minute
File Fragments : 1.0
Combined Index : 1175 ops/minute
2MB Files Test
Read Performance : 405 operation(s)/min (13824 kB/sec, 92x)
Write Performance : 73 operation(s)/min (2492 kB/sec, 16x)
Delete Performance : 851 ops/minute
File Fragments : 1.0
Combined Index : 156 ops/minute
64MB Files Test
Read Performance : 13 operation(s)/min (14199 kB/sec, 94x)
Write Performance : 3 operation(s)/min (3277 kB/sec, 21x)
Delete Performance : 270 ops/minute
File Fragments : 1.0
Combined Index : 6 ops/minute
Endurance Test Status
Operating System Disk Cache Used : No
Use Overlapped I/O : No
Test File Size : 32MB
Block Size : 512 byte(s)
File Fragments : 1
Endurance Benchmark Breakdown
Repeated Sector ReWrite : 101 kB/s
Sequential Sector Write : 231 kB/s
Random Sector Write : 3 kB/s
Drive
Total Size : 964MB
Free Space : 964MB, 100%
Cluster Size : 16kB
PD18 Benchmark Results
Device Index : 2888 ops/minute
Endurance Factor : 91.70
Results Interpretation : Higher index values are better.
Performance Test Status
Run ID : WOPER on Tuesday, April 15, 2008 at 9:47:28 PM
Platform Compliance : Win32 x86
System Timer : 2.4GHz
512B Files Test
Read Performance : 27516 operation(s)/min (229 kB/sec, 1x)
Write Performance : 1116 operation(s)/min (9 kB/sec, 0x)
Delete Performance : 3546 ops/minute
File Fragments : 1.0
Combined Index : 3009 ops/minute
32kB Files Test
Read Performance : 14189 operation(s)/min (7567 kB/sec, 50x)
Write Performance : 1826 operation(s)/min (974 kB/sec, 6x)
Delete Performance : 3408 ops/minute
File Fragments : 1.0
Combined Index : 3849 ops/minute
256kB Files Test
Read Performance : 3132 operation(s)/min (13363 kB/sec, 89x)
Write Performance : 706 operation(s)/min (3012 kB/sec, 20x)
Delete Performance : 3140 ops/minute
File Fragments : 1.0
Combined Index : 1338 ops/minute
2MB Files Test
Read Performance : 445 operation(s)/min (15189 kB/sec, 101x)
Write Performance : 86 operation(s)/min (2935 kB/sec, 19x)
Delete Performance : 1020 ops/minute
File Fragments : 1.0
Combined Index : 178 ops/minute
64MB Files Test
Read Performance : 14 operation(s)/min (15292 kB/sec, 101x)
Write Performance : 4 operation(s)/min (4369 kB/sec, 29x)
Delete Performance : 369 ops/minute
File Fragments : 1.0
Combined Index : 7 ops/minute
Endurance Test Status
Operating System Disk Cache Used : No
Use Overlapped I/O : No
Test File Size : 32MB
Block Size : 512 byte(s)
File Fragments : 1
Endurance Benchmark Breakdown
Repeated Sector ReWrite : 137 kB/s
Sequential Sector Write : 687 kB/s
Random Sector Write : 3 kB/s
Drive
Total Size : 964MB
Free Space : 964MB, 100%
Cluster Size : 16kB
PD19 Benchmark Results
Device Index : 2508 ops/minute
Endurance Factor : 54.70
Results Interpretation : Higher index values are better.
Performance Test Status
Run ID : WOPER on Tuesday, April 15, 2008 at 9:59:07 PM
Platform Compliance : Win32 x86
System Timer : 2.4GHz
512B Files Test
Read Performance : 25171 operation(s)/min (210 kB/sec, 1x)
Write Performance : 916 operation(s)/min (7817 bytes/sec)
Delete Performance : 2885 ops/minute
File Fragments : 1.0
Combined Index : 2500 ops/minute
32kB Files Test
Read Performance : 13260 operation(s)/min (7072 kB/sec, 47x)
Write Performance : 1557 operation(s)/min (830 kB/sec, 5x)
Delete Performance : 2842 ops/minute
File Fragments : 1.0
Combined Index : 3349 ops/minute
256kB Files Test
Read Performance : 2981 operation(s)/min (12719 kB/sec, 84x)
Write Performance : 636 operation(s)/min (2714 kB/sec, 18x)
Delete Performance : 2620 ops/minute
File Fragments : 1.0
Combined Index : 1227 ops/minute
2MB Files Test
Read Performance : 408 operation(s)/min (13926 kB/sec, 92x)
Write Performance : 78 operation(s)/min (2662 kB/sec, 17x)
Delete Performance : 889 ops/minute
File Fragments : 1.0
Combined Index : 163 ops/minute
64MB Files Test
Read Performance : 13 operation(s)/min (14199 kB/sec, 94x)
Write Performance : 3 operation(s)/min (3277 kB/sec, 21x)
Delete Performance : 325 ops/minute
File Fragments : 1.0
Combined Index : 6 ops/minute
Endurance Test Status
Operating System Disk Cache Used : No
Use Overlapped I/O : No
Test File Size : 32MB
Block Size : 512 byte(s)
File Fragments : 1
Endurance Benchmark Breakdown
Repeated Sector ReWrite : 105 kB/s
Sequential Sector Write : 386 kB/s
Random Sector Write : 3 kB/s
Drive
Total Size : 964MB
Free Space : 964MB, 100%
Cluster Size : 16kB

Conclusion:

    A-DATA has a wide selection of flash drives in many shapes, sizes, colors, and capacities. The units I received are 1GB, but the sizes A-DATA offers range from 1GB up to 16GB. That is a lot of storage on a small form factor drive. The PD17-18-19 are small, cute flash drives that can fit on a key chain and not even be noticed. They are great for taking work files to and from your home, or even moving your music from computer to computer. If you are in the market for a small, high-capacity, flash-based drive, A-DATA has a very nice selection to choose from. I would like to thank A-DATA for sending these items out for VH to review.

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