1248 Thunderbolt Audio Interface. MOTU interfaces can be found in studios around the world because of their superb performance record and trusted reliability. The 1248 is MOTU's flagship interface for their next-generation line of high-performance audio interfaces, combining incredible audio and state-of-the-art features. 66 audio channels - All the I/O you need in one rack space The 1248 provides all of the I/O you need for a well-equipped personal studio, including four mic inputs, two dedicated hi-Z guitar inputs, 8 x 12 balanced analog with separate main and monitor outs, 2 x 8-channel ADAT optical, and RCA S/PDIF (with sample rate conversion), for a total of 32 inputs and 34 outputs. Need more I/O? Expansion possibilities are seamless and virtually limitless. Superb audio quality - Pure sound, without compromise The 1248 employs latest-generation ESS Sabre32 Ultra converters, known for their industry-leading performance, together with expertly engineered analog circuits that reflect more than three decades of pro audio engineering expertise. The result? The 1248 achieves actual, measured performance of 123dB dynamic range (A-weighted, 20Hz to 20kHz) on its balanced TRS analog outputs. Ultra-low I/O latency - State-of-the-art latency performance Every digital audio workflow has some latency. The only question is, how much? In the case of the 1248, the answer is, not much at all. In the 1248, latency is measured in a handful of samples, from the time an audio signal first goes digital to its arrival somewhere else (to an output the mixer, or the computer). By keeping latency this low in the hardware, the 1248 helps minimize latency introduced by your system. Thunderbolt technology - Plug-and-play ease with massive bandwidth Thunderbolt lets you connect displays, hard drives, and other peripherals to your computer, along with the 1248, and the Thunderbolt bus won't even break a sweat.