There's a new NVM Express SSD in town. OCZ's enterprise-oriented Z-Drive 6000 Series supports version 1.1b of the low-overhead protocol designed to replace AHCI. Rather than using an in-house controller, the drive taps a PMC Sierra chip with 16 NAND channels. This controller is tied to four PCIe Gen3 lanes via a cabled SFF-8639 interface.
Initially, the drives will be available in 800GB, 1.6TB, and 3.2TB capacities. There are also plans for a 6.4TB version—and for a 6300 derivative based on a half-height, half-length expansion card. Right now, the 6000 Series is limited to the thicker 2.5" form factor familiar from Intel's 750 Series SSD.
6.4TB NVME drive...