SanDisk Professional 4TB PRO-G40 SSD

I purchased this drive in Nov 2024 and recently have been trying to use it, however I am running into non stop issues.

I have it externally plugged into the only USBC plug on my mini PC, using the original cable.

This works fine, but if the drive is idle for even a few mins, trying to access it freezes explorer. I have to disconnect it and reconnect.

I have downloaded dashboard and no issues with the drive, I just cant seem to keep it connected. I have an old WD drive plugged in and that drive works fine.

How can I get this to work so I can leave it plugged in? I was hoping to use it as a storage solution for a DLNA.

@OriginalCray The PRO-G40 needs a minimum of (5 Volts - 3 Amps) at all times .

Have you checked our knowledge base articles?
(Get Support for Your SSDs and Flash Products | SanDisk)

Try this one.

Have you opened a Support Case?
If not, contact SanDisk Technical Support for assistance.
(Contact Support | SanDisk)

@SBrown I am pretty sure the usbC port is powering the device, the light is on.

Device manager shows it, dashboard shows it, however trying to browse or use any files is not possible as I can’t access the device once it’s gone idle. How else would I power this? It doesn’t have a separate power, its a USBC port only, not a second port for power and data transfer,

I’ll log a support case, thanks

If the USB-C port doesn’t provide 5 Volts - 3 Amps at all times, it will drop off the bus.

@SBrown how do I check this?

Support was no help, drive shows healthy in everything, disk management, dashboard, crystaldisk etc.

Check the specs of your miniPC. Most systems reduce power to the port when not in use which in turn would not be enough power to wake up the drive when idle. The alternate is getting a powered hub, docking station capable of delivering 5v 3A to the port at all times.

It looks like the issue is related to power delivery. While your mini PC’s USB-C port may initially provide enough power, it could be reducing power when idle, causing the drive to disconnect.

A good solution would be to use a powered USB-C hub or docking station that ensures a consistent 5V 3A power supply. This should help keep the drive connected even when idle.

Also, check your power management settings in Windows to disable USB selective suspend, as this might be contributing to the issue.