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Lexar SL100 Pro Portable SSD 500 GB


Staff member
May 14, 2004
21,305 (3.52/day)
Processor Core i7-4790K
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The Lexar SL100 Pro is one of the most compact portable SSDs on the market. Inside the metal case we found a Marvell SSD controller paired with Intel/Micron 3D TLC flash chips. Our performance testing shows excellent sequential performance, but random IO is slower than with competing drives.

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Feb 18, 2005
3,190 (0.55/day)
Ikenai borderline!
Those IOPS are abysmal, but likely not a concern for this drive's use-case (sequential), although performance there isn't great either.

@W1zzard I assume that due to the PCB design, this drive doesn't suffer from thermal throttling like the M.2-NVMe-in-an-enclosure that pretty much every other company has gone with?
Nov 11, 2004
7,144 (1.22/day)
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Nice-ish design, but that performance... My regular USB 3.1 flash drive is nearly as fast when it comes to the random read IOPS...
Oct 18, 2019
189 (0.46/day)
A 512GB Flash Drive costs $100 or less and offers usb 3.0 speeds.

A 1TB Flash Drive is about $150-$200.

A portable HDD on USB 3.0 is definitely slower, but the question you need toask yourself is how frequently you'll be copying the entire device? Most people are carrying these drives so they have access to just a few files or folders...not copying the entire device. The average person isn't filing it up either. They are just using it to secure their most important OFFICE documents.