The AI-301DA offers two pairs of analog RCA inputs, an asynchronous USB input (supports up to 32/192 and up to DSD 5.6MHz), Coax S/PDIF (supports up to 24/192), Toslink (supports up to 24/96), a built-in Bluetooth antennae (memory capacity for up to a maximum of eight Bluetooth device pairings), and an IEC inlet for the included power cord. There’s a single RCA for subwoofer out and a pair of speaker binding posts.