We first saw the HDX-SDI on the Motu stand last year at NAB. The uncompressed I/O box is close to shipping so we thought that we would take another look.
When capture or I/O cards get talked about for use with FCP or FCPX, Motu isn't one of the first manufacturers that gets mentioned. Motu come from an audio background and have expanded into video devices as a logical progression of their product line.
Almost ready to ship and priced at around $1,000, the Motu HDX-SDI is a well specified loop through Thunderbolt connected 1U I/O box. What makes the HDX-SDI slightly different from the other manufacturers is a detailed front panel status screen including audio meters and a separate timecode display.
It also looks like the HDX-SDI supports not only FCP7 and Final Cut Pro X, but Adobe Premiere and Avid Media Composer. With Motu's musical background, the audio capture has 16 channels available, analog, AES/EBU or embedded at sample rates up to 96 kHz.
And for those who say FCPX wasn't anywhere at NAB 2013, it was nice to see Motu using it as their main NLE playing back video through the HDX-SDI!