Universal Audio UAD-2 Satellite Quad Ultimate 2, Firewire DSP Card, External Firewire 800 and 400 DSP accelerator unit, incl. 73 UA Plug-Ins from the UAD-Software Version v7.3 (except 3th Party "Direct Developer" Plug-Ins like Sonnox, Brainworx...), High-bandwidth Firewire DSP Accelerator w/ (4) Analog Devices SHARC processors, VST, AU, RTAS support; Combine up to 4 UAD-2 Satellite devices with UAD-1 and UAD-2 PCI/PCIx/PCIe cards in a single system, for MAC OSX 10.7 or higher