Today were taking a look at Corsairs Neutron NX500 SSD . This is the companys second PCIe SSD, again based on the Phison E7 controller, but this time distinguishing itself with a custom heatsink, larger overprovisioning than almost any consumer SSD, and twice the DRAM cache of a typical consumer SSD. The price tag matches the premium specifications, but the real-world performance does not justify the premium.