After the launch of the Vertex 4, OCZ had a little explaining to do. Initially the SSD was presented as using a controller developed in-house by Indilinx, but that turned out to be a Marvell controller using their firmware. The new Vertex 450 makes up for this, as it really does have a controller developed by them and not someone else.
It's actually the second time that an SSD from the Vertex line is equipped with an Indilinx controller. The original Vertex from 2009 also had one, but the Vertex 2 and 3 used one from SandForce.
The Indilinx BareFoot 3 M10 (BF3-M10) controller, which runs at a slightly slower clock speed according to OCZ than the one used for the Vector, is equipped with an optimized clock generator. The lower speed should increase the yield of the production of the chip, which should decrease costs. The chip now also supports 256-bit AES encryption.