I published a post back in 2016 highlighting the problem we were seeing with Sandforce controllers on single SSD drives. We have now also come across this PCIe 3.2TB SSD that uses a Marvel controller as well as Sandforce controllers to control banks of data chips. Like the others, this device has I/O errors which we believe is caused by the Sandforce controllers. This PCIe SSD device requires proprietary drivers for it to be recognised in the bios and OS, regardless of what platform it is run on. Although we can communicate with the device via an SSD Utility provided by Toshiba, there is no access to the user data.