Avid Pro Tools HDX card, additonal PCIe card with DSPpower, (up to factor 5 more than HD Accelcard), up to 256 tracks with one card, 64 i/os with AVID interfaces, extendable with additional HDX cards, more delay-compensation (16383 samples), new AAX-plugin workarround, RTAS and AudioSuite, without software, only when purchase a HDX-system