As was rumored earlier this year, these disks are launched in cooperation with Toshiba/OCZ. They feature OCZ's Indilinx Barefoot 3 controller and 19nm MLC NAND flash memory from Toshiba.
All three feature SATA 6 Gb/s interface, and offer sequential read speeds as high as 550 MB/s, sequential writes of up to 470 MB/s on the 120 GB variant; and up to 530 MB/s on both the 240 GB and 480 GB ones. The three offer 4K random access throughput of up to 85,000 IOPS, 95,000 IOPS, and 100,000 IOPS, respectively; with 4K QD32 steady-state throughput of 12,000 IOPS, 20,000 IOPS, and 23,000 IOPS, respectively.
Source: TPU