TEST: Lexar SL500 1TB external SSD

Technical data
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Manufacturer	Lexar
Model number	LSL500X001T-RNBNG
Storage capacity	1024 GB (954 GiB)
pSLC-Cache	38 GB approx.
Read speed	2000 MB/s
Write speed	1800 MB/s
Interface	USB 3.2 Gen 2x2 (20 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	85 x 54 x 7.8 mm
Weight	43 gram
Price	ca. 100 AUD (= 0,10 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

56 %

Write speed

51 %

*) Test result evaluated according to AS SSD Score within the same size.

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 1294 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1910,19 MB/s	1680,81 MB/s
4K in megabytes per second	29,25 MB/s	78,75 MB/s
4K-64Thrd in megabytes per second	273,15 MB/s	303,82 MB/s
Access time in milliseconds	0,048 ms	1,315 ms
Score	493	551
Total score	1294

Copy Performance Test

A common everyday situation is simulated here. Three test folders are created:

• ISO (folder with two large files)
• Program (folder with many small files)
• Game (folder with small and large files)

The three folders are copied using the Windows Copy command (the cache remains enabled). The practical test of July 20, 2024 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD Copy-Benchmark	Transfer rate:	Duration:
ISO two large files	882,07 MB/s	2,61 s
Program many small files	138,79 MB/s	50,72 s
Game small and large files	515,67 MB/s	13,40 s

Compression Performance Test

Here, the writing and reading speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 2000MB/s and 1800MB/s respectively).

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CDM	Read [MB/s]	Write [MB/s]
SEQ1M Q8T1	2077,92	1873,92
SEQ1M Q1T1	1877,54	1724,55
RND4K Q32T16	267,83	369,34
RND4K Q1T1	34,18	86,83