The solution for ultimate Pro Tools|HD power has arrived. Now you can expand your PCIe-based Pro Tools|HD rig with up to seven HD Accel cards for maximum processing power with the new Digidesign PCIe-to-PCIe Expansion Chassis. This 4U rack-mount system works with Mac Pro running Mac OS X 10.5.3 (Leopard). It comes with a built-in, ultra-quiet power supply, PCIe host interface card, and a high-speed 3m iPass cable.
