Computex 2014 - Marvell displayed their SATA Express solutions at Computex 2014, including a SATA Express to M.2 enclosure. This allows the use of M.2 SSDs with SATA Express cabling and utilizing a 2.5" enclosure.
The emergence of SATA Express as an interconnect will create an entire ecosystem of products built to take advantage of the increased throughput of the PCIe bus.
Marvell also had their 88SS9293 PCIe 2.0 X4 controller on display with 512GB integrated into the small form factor.
The 5th generation Marvell 88SS1074 is a SATA SSD controller compatible with 15nm TLC NAND. This controller is using the SSD controller industries' smallest process at 28nm CMOS. This controller is optimized for the M.2 form factor. Marvell's 3rd gen LDPC technology is a big reason the controller can deal with the higher error rates of TLC NAND, which we covered more in-depth here.
Marvell solutions are utilized by a wide range of SSD manufacturers in numerous applications from 6Gb/s SAS and SATA to 12Gb/s SAS and soon M.2 applications.