Presonus Quantum 4848, Thunderbolt 2 Audio Interface, 192 Sampling rate, 24 bit resolution, 48 Inputs and outputs, 32 Line level inputs and outputs via rear DB25 connector, 2 ADAT inputs and outputs for 16 channels of digital I / Os at base sampling rates, BNC Word Clock I / O, Up to 4 Quantum 4848 interfaces via Thunderbolt 2 can be used simultaneously for up to 192x192 simultaneous inputs and outputs, Signal LEDs for all 32 DB25 channels, Compatible with Mac OS X 10.11.6 or higher, Windows 10, Dimensions (W x D x H): 482.6 x 177.8 x 44.45 mm, Weight: 2.72 kg, Includes Studio One Professional Recording and Mastering DAW and Studio Magic Plug-in Suite