Universal Audio UAD-2 Satellite Quad, Firewire DSP Karte, External Firewire 800 and 400 DSP accelerator unit, Includes Analog Classics plug-in bundle, featuring LA-2A Classic Audio Leveler, 1176LN/SE Classic Limiting Amplifiers, Pultec EQP-1A and RealVerb Pro plug-ins, High-bandwidth Firewire DSP Accelerator w/ (4) Analog Devices SHARC processors, VST, AU, RTAS support; Mac OS X Snow Leopard 10.6.5 and higher compatible, 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