* Dynamic link speed management allows developers to control the speed at which the link is operating

* Link bandwidth notification alerts platform software (operating system, device drivers, etc) of changes in link speed and width

* Capability structure expansion increases control registers to better manage devices, slots and the interconnect

* Access control services allows for optional controls to manage peer-to-peer transactions

* Completion timeout control allows developers to define a required disable mechanism for transaction timeouts

* Function-level reset provides an optional mechanism to reset functions within a multi-function device

* Power limit redefinition enables slot power limit values to accommodate devices that consume higher power