4TB Extreme Pro, only 1,000MB/s speeds? (MacOS/APFS)

Brand new drive (Extreme PRO Portable SSD, 4TB), freshly formatted to APFS, Mac Studio, Thunderbolt/USB4, tried cable both ways, different ports on my Mac Studio, and I’m topping out at 1,000MB/s for my speeds.

Am I missing something? Any firmware update? Tried a few different speed tests, all the same speeds.

Hi @sandisk3,

Please contact the SD Technical Support team for the best assistance and troubleshooting: