ExFAT thumb drive not recognized in Mac OS Big Sur I'm using my first Mac ever, a recently acquired Macbook Air with the M1 chip. It has the latest version of Big Sur (11.3 (20E232)).
I was having issues with my existing thumb drives, most of them formatted with NTFS. When connected to the macbook nothing would pop up, and I couldn't see the drive even on the disk utility. Nothing, not even grayed out.
After digging a bit on google I noticed that I needed some third party software to make it work with NTFS, but there was an alternative to format it with ExFAT. Tried that, no luck. No matter what block size I choose, it won't pop up when connected to the mac.
I bought a new thumb drive that says it works right out of the box, a sandisk ultra dual drive usb type-c. Tried connecting it and again: nothing pops up. Tried on my windows machine and it works right away. It was formatted as ExFat already so I'm a little puzzle on how to resolve this.
If I go to the system report, under Hardware -&gt; USB I see there's a device connected:

Do I need to do anything else to make it appear?
diskutil list
me@MacBook-Air ~ % diskutil list
/dev/disk0 (internal):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                         251.0 GB   disk0
   1:             Apple_APFS_ISC ⁨⁩                        524.3 MB   disk0s1
   2:                 Apple_APFS ⁨Container disk3⁩         245.1 GB   disk0s2
   3:        Apple_APFS_Recovery ⁨⁩                        5.4 GB     disk0s3

/dev/disk3 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +245.1 GB   disk3
                                 Physical Store disk0s2
   1:                APFS Volume ⁨Macintosh HD⁩            15.4 GB    disk3s1
   2:              APFS Snapshot ⁨com.apple.os.update-...⁩ 15.4 GB    disk3s1s1
   3:                APFS Volume ⁨Preboot⁩                 310.5 MB   disk3s2
   4:                APFS Volume ⁨Recovery⁩                1.1 GB     disk3s3
   5:                APFS Volume ⁨Data⁩                    180.1 GB   disk3s5
   6:                APFS Volume ⁨VM⁩                      1.1 GB     disk3s6

system_profiler SPUSBDataType
me@MacBook-Air ~ % system_profiler SPUSBDataType
USB:

    USB 3.1 Bus:

      Host Controller Driver: AppleT8103USBXHCI

    USB 3.1 Bus:

      Host Controller Driver: AppleT8103USBXHCI

         SanDisk 3.2Gen1:

          Product ID: 0x5595
          Vendor ID: 0x0781  (SanDisk Corporation)
          Version: 1.00
          Serial Number: xxxxxxxxxxxxx
          Speed: Up to 5 Gb/s
          Manufacturer:  USB
          Location ID: 0x01200000 / 1
          Current Available (mA): 900
          Current Required (mA): 896
          Extra Operating Current (mA): 0

me@MacBook-Air ~ %
Don't hesitate to force a little to connect this key. I noticed that on MBA M1 some USB-C / Thunderbolt devices were a bit &quot;complicated&quot; to plug in and sometimes were not fully connected.