Question UASP enclosure for large capacity SSD ?

[NickJHP]

I purchased a UGreen USB 3.1 2.5" enclosure (https://www.ugreen.com/products/aluminum-usb-c-2-5-hard-drive-enclosure) that supports UASP. When I use it with an old OCZ Vertex 4 128Gb SSD, I get full throughput to the drive of several hundred Mb/sec, and Windows can trim the drive without problem from the Drive Properties/Tools dialog. However, if I put a Samsung 870 QVO 8Tb SSD in the enclosure, I find that:

1. Although the Drive Properties/Tools dialog knows that the drive is an SSD (it shows the media type as "Solid state drive"), the Optimise button is greyed out and the current status displays "Optimisation not available".
2. When I copy files to the drive, I only get throughput of a few Mb/sec rather than the several hundred Mb/sec with the Vertex 4 in the same enclosure.

The enclosure is connected to Windows 11 running on a Gigabyte Z690 Aorus Pro, and if I put the 870 QVO in another older USB3 enclosure where the Disk Properties dialog show it as "Hard disk drive" rather than "Solid state drive", then I can copy files to it at full speed, but I can't trim it.

Any suggestions on an enclosure that will support that size of SSD correctly, allowing full throughput and trim?

 

[lvt]

Do you have a computer with Win10 to test those enclosures?

Maybe the next drivers update for Win11 will fix the problem.

 

[NickJHP]

No, I no longer have a Win10 machine. I found out, after digging around on the enclosure manufacturer's website, that the specifications for the enclosure say that it supports a max drive size of 6Tb. Probably that is why the 8Tb drive has problems. So I'm still searching for a 2.5" drive enclosure with support for an 8Tb drive and UASP.

[MERGED POST]:

Still on the hunt for an enclosure that supports 8Tb SDD and trim. At the moment I'm using the drive in the enclosure where it's identified as an HDD, and once a fortnight or so I remove it from the enclosure and cable it directly to a spare SATA cable on the PC so that I can run trim on it.

 

[NickJHP]

Well, to answer my own question, a 2.5" HDD that I had in an older StarTech S2510BMU33 enclosure died, so on the off-chance I put the 8TB SSD in that. In that enclosure, Windows sees it as an SSD, I can run trim on it without problems, and I get the expected throughput of ~400Mb/sec when copying large files to it. So problem solved.

Interestingly, when I look at the specs for the enclosure on the StarTech website, against max drive capacity it merely says "Currently tested with up to 1TB 5400 RPM hard drives", but it works with the much larger 8TB SSD, whereas the newer enclosures that I previously tried with the drive didn't.

 

[CountMike]

Converting SATA to USB needs a pretty complicated chips with it's own BIOS so not all of them are programmed to properly recognize some drives and transmit all data to OS so it can behave accordingly.