As noted, Corsair's new Neutron XTi SSD series is based on a quad-core Phison controller, most likely a quad-core Phison S10 controller and uses Toshiba's 15nm MLC NAND. It will be available in 240, 480 and 960 GB capacities as well as a 1920 GB version which should be available in near future. It uses SATA 6Gbps interface and comes in a standard 2.5-inch form factor.
According to the specification list, the Phison controller and MLC NAND are enough to provide sequential performance of up to 560MB/s for read and up to 540MB/s for write, while random 4k performance peaks at up to 100,000 IOPS for read and up to 90,000 IOPS for write.
The rest of the specifications and features include End-to-End Data Path Protection (ETEP), Enhanced Error Correction with SmartECC and SmartRefresh features and Advanced Garbage Collection. The Corsair Neutron XTi SSD lineup is also compatible with Corsair SSD Toolbox.
According to Corsair, the new Neutron XTi SSD lineup should be available immediately with a price set at at US $89.99 for the 240GB, US $159.99 for the 480GB and US $239.99 for the 960GB version while the price or the availability date of the 1920GB version is still unknown.