Sandisk SSD - Too slow

Portable SSD Portable | Extreme | Extreme Pro SSD
1

I have Sandisk extreme portable SSD Model SDSSDE61-ITOO, which is too slow for approx. 43 MB/S. Kindly advise how to solve this issue and what is the original speed for this model.
Regards,

2

Hi @TAREK68 ,

Have you opened a Support Case? If not opened, for more information, please contact the SD Technical Support team for best assistance and troubleshooting:
https://kb.sandisk.com/app/ask

5

You can test the drive on another computer or port to rule out issues with your setup. Make sure your USB drivers and SSD firmware are up to date. Close any unnecessary apps that could be using up resources, and run a speed test with CrystalDiskMark. If the speed is still slow, try formatting the SSD after backing up your files. If the issue persists, contact SanDisk support for further assistance.

6

The SanDisk Extreme Portable SSD (SDSSDE61) should offer speeds up to 550 MB/s. If you’re only seeing 43 MB/s, first ensure you’re using a USB 3.1 or higher port, as slower ports (like USB 2.0) will limit speed. Also, try using the original cable that came with the drive. If the drive is nearly full or has errors, it can slow down, so check for disk errors or free up space. Lastly, make sure no heavy apps are running on your computer. If the issue persists, the drive might be faulty, and you should consider getting a replacement.

7

I think you should try these fixes:

• Use the original short USB-C cable that came with the drive. Many standard phone cables only support slow USB 2.0 speeds.

• Connect the drive directly to a USB 3.1, USB 3.2, or Thunderbolt port on your computer. Avoid unpowered USB hubs or extensions.

• Download the official SanDisk SSD Dashboard utility to check for and install any pending firmware updates.

• Try to keep at least 10–15% of the storage capacity free.

If you need to clear up space on Windows, you can use the built-in Disk Cleanup tool:

1. Click the Start Menu, type Disk Cleanup, and open the app.

2. Select your SanDisk drive letter from the drop-down menu and click OK.

3. Check the boxes for temporary files and cache, then click Clean up system files.

Finally, I would recommend using a third-party speed test software to verify your exact Read and Write speeds. Also read: [4 Best Ways] How to Check Hard Disk Speed in Windows 10/11?