SandForce previously owned by LSI and now Seagate seems to have big problems. Their SandForce SF3000 controller has been announced ever since 2013, yet it is delayed once more, now to the first half of 2015. The initial plan was to get this product out as we speak already.
There isn't much known on what exactly is going on but sources within the component industry state that there are issues with the PCI-E based end products that make use of that SF-3000 series controller. It is unknown if it is a chip design issue or something that can be fixed on the firmware side of things. And the PCI-E based SSDs are a huge focus for the manufacturer as by using that bus, they can maximize the potential of the series 3000 controllers.
The SF3000 should be a significant step forwards in the SSD industry when it comes to performance, the controller is optimized for a bandwidth equal toi PCIE 2.0 4.x
By using the PCIe bus SandForce can achieve sequential read and write performance of up-to 1800 MB/sec whilst the IOPS performance would be 150K for reads and 81K for writes.