When Corsair sent us their new Neutron NX500 400GB NVMe PCIe AIC SSD to review we weren't impressed by what we were seeing from Corsair's new flagship storage drive. Corsair claims that the Neutron NX500 400GB and Neutron NX400 800GB drives can reach sequential speeds of up to 3,000 MB/s Read and 2,400 MB/s Write. They also note that the should be getting up to 300,000 IOPS of 4K Random Read performance and up to 270,000 IOPS of Random Write performance. These speeds are possible thanks to the use of a Phison PS5007-E7 controller together with 15nm Toggle 2.0 MLC NAND Flash.