AJA Io XT Professional Capture & Playback Device w/ Thunderbolt This Item Includes: AJA Video IO-XT Professional Capture & Playback Device - AC Adapter - AJA Technical Support - AJA Control Room Software - AJA Video Warranty Dual Thunderbolt ports support "daisy-chaining" of multiple Thunderbolt-enabled devices, such as hard drives Dual 3G/HD/SD-SDI inputs and outputs Single link SDI 4:2:2 I/O Dual-link SDI 4:4:4 I/O