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Lexar Professional JumpDrive S23 16GB USB 3.0 (100MB/s) Retractable Design Flash Drive Memory Stick - Teal
Lexar Professional JumpDrive S23 16GB USB 3.0 (100MB/s) Retractable Design Flash Drive Memory Stick - Teal
Price: £9.86

7 of 9 people found the following review helpful
4.0 out of 5 stars Good performance, ok design., 29 July 2014
Verified Purchase(What is this?)
Before purchasing the product, some research was done on USB flash drives within 8£-12£. Testing results and product design matched my expectations. The following rating, though, is based on a comparison to other USB 3.0 flash drives in this price range, regardless of expectations:

TRANSFER RATES (40%) - ★★★★★

Condition / Format: Brand new / NTFS
System #1 (USB 2.0): P4 640 @ Asus P5GD1
System #2 (USB 3.0): i5-2500K @ Asrock Z68 Pro3
OS: Win7 Home Premium x64
Benchmark: CrystalDiskMark 3.0.3 x64

USB 2.0 port:

(R=Read, W=Write)
SEQ: R: 34.64 MB/s | W: 22.27 MB/s
512K: R: 32.52 MB/s | W: 12.23 MB/s
4K: R: 3.194 MB/s | W: 0.802 MB/s
4K QD32: R: 4.378 MB/s | W: 0.871 MB/s

USB 3.0 port:

Seq: R: 89.80 MB/s | W: 29.36 MB/s
512K: R: 76.02 MB/s | W: 13.06 MB/s
4K: R: 5.565 MB/s | W: 1.070 MB/s
4K QD32: R: 8.319 MB/s | W: 1.166 MB/s

BUILD QUALITY / DESIGN (30%) - ★★★☆☆

Sliding mechanism (inner teal part and plug):

- Okay overall, but a bit fragile - the inner part bends slightly inwards, when pressed;
- Plug made of thin plastic, should be handled with more care than metal ones;
- This design makes the parts mentioned above prone to getting dusty (unless covered);
- The triangular arrow has a red drive-activity LED.


- Fully made of a somewhat sturdy but lightweight plastic (6 grams); should not break if dropped on a hard surface, but should not resist considerable stress;
- Could be slimmer so as not to interfere with connected USB devices (especially in a mobo's back I/O panel) - dimensions (closed): 4.3cm x 2.2cm x 0.6cm;
- Teal keyloop attachment may be useful, but, since it is thin plastic, it may break when pulling the keyloop;
- White plastic somewhat prone to scratches (polished surface); teal part not so much;

WARRANTY (10%) - ★★★★☆

3 Years over 2 (in EU) is great. 5 Years or more would be fantastic.

VALUE FOR MONEY (20%) - ★★★★★

One of the best options in the considered price range.


- Good read/write speeds;
- Above average 4K random write speeds;
- 3 Year warranty;
- Not too bulky;
- Good value for money;

- Sliding mechanism construction;
- "Weak" plug and keyloop attachment;

- No 5 year warranty;

Usage experience (6 months):
- Speeds seem to drop a bit when you add files and/or when you use it for some time without formatting.
- Contacted Lexar through online chat to solve a speed-related issue. They were helpful, a full format was needed.

*= 40% x 5 + 30% x 3 + 10% x 4+ 20% x 5 = (4.3 stars)

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