The main unit and cable are available for purchase for 70,000 yen! The sound is pure and very clear. At this price point, I highly recommend getting this for its flat and warm sound that rivals RME. A board that allows conversion to USB-C is also sold separately, so you could consider replacing it. The following is an excerpt from the previous seller's product description: ----- The main unit, cable, and instruction manual are all included. As a bonus, I will include the items in the fourth photo: Oyaide FIREWIRE 400 to 800 cable FIREWIRE 400 to 800 conversion terminal Audio-Technica, power 2P conversion adapter This was a piece of equipment I used with affection for a long time in recording, but I am selling it because I switched to an Apollo due to an increase in the number of microphone inputs. The sound quality is so good that it's used in mastering, and personally, I think the sound is better than the Apollo. It also has a SHARK processor and can run plugins with DSP, so you can record with compression and EQ. The built-in mixer is also 80-bit, which is high resolution, and I think this is one of the factors that contributes to the good sound. It seems to support Thunderbolt, so if you prepare the conversion, you should be able to use it with current Macs. Please search the MetricHalo website for more information. I have never used it with Thunderbolt, so I cannot take responsibility for this. <Addendum> It worked with Thunderbolt on my Macbook Pro. Thank you. There are a few scratches, and the Analog Out output change button is not working well. It works after pressing the button several times, so there is no problem with use.