The SandForce SF-2281 controller has been powering many of the solid state drives we have reviewed in the past year or so. When these drives were first released 28% of the storage capacity was used for over-provisioning. So if you had a 128GB drive you would actually get 100GB of available space. Later this 28% was brought down to 7%, now SandForce has released a 0 provision that allows for 0% of the capacity to be used for background activities. Today we are taking a look at one of the first drives to use this 0 provision, the ADATA Premier Pro SP900.