JetExpress has a PCIe 3.0 x4 host interface with 4GB/s of bandwidth per direction, resulting in 8GB/s in total. Enthusiast-class SSDs and enterprise products with JetExpress are expected later this year.
The controller supports 8-16 ONFI channels, 1-2 GB of DDR3 DRAM cache, and power loss protection circuits. It supports three popular form-factors, including M.2, 2.5-inch (likely SATA-Express), and SFF-8639. M.2 PCIe prototypes were put up for our lenses.