According to official materials, it is 22 times faster than a typical SATA SSD
Claimed sequential read and write speeds are 12,400 and 11,800 MB/s, respectively. The creators talk about two times the superiority of PCIe 4 SSDs and 22 times the superiority of SSDs with SATA interfaces.
The device uses 232-layer Micron memory and a Phison controller. Retail options will come with 1, 2 and 4 TB of flash memory. Interestingly, the T700 will have both a version with a heatsink (with advanced fins and no noisy fan) and a regular version without any cooling. One of the materials demonstrates very well what a cooling system is.