Western Digital has addressed a firmware issue in the manufacturing process and can confirm that the issue is not impacting the current shipping of SanDisk Extreme Portable SSD storage devices.

SanDisk Extreme PRO Portable SSD provides powerful solid state performance in a rugged, dependable storage solution. Nearly 2x as fast as our previous generation!

• Fast and Dependable
  Get powerful NVMe™ solid state performance featuring 2000MB/s read/write speeds in a portable drive that’s reliable enough to take on any adventure.
• Work Faster and Longer
  Save time storing and transferring data with the forged aluminum chassis that also acts as a heatsink to deliver higher sustained speeds.
• Encryption for Extra Security
  Help keep private content private with the included password protection featuring 256 bit AES hardware encryption.
• Back Up and Live Fearlessly
  Stay unfazed during power failures, virus attacks, and even natural disasters, because you have an extra copy of what matters most, stored on a drive designed for reliability.