A:AnswerYou will need a USB-C to USB-type 3 male cable. The USB C Thunderbolt connects to your Mac book and the other end USB-type 3 male connects to your CD Writer.
A:AnswerIt worked flawlessly on my MacBook Pro Retina (2014) with Big Sur 11.4. that was originally loaded with macOS Catalina 10.15.7 but has been upgraded over time.
A:AnswerNo, the thunderbolt connection is limited to select devices (it is similar in size to a standard USB connection) and I'm not aware of any iphone with that connector.
A:AnswerIt depends on the model year. Earlier MacBook Air models came with Thunderbolt or Thunderbolt 2 ports and later models came with Thunderbolt 3 ports. See pictures attached for shape of the two different ports.
A:AnswerIt will do 400mbps no problem. (it's rated for a 1GB connection) HOWEVER, your bottleneck is more likely your ISP capping your connection. Do a google speed test on several different devices to see what your connection speed actually is.
A:Answerif the device has a t-bolt connection, it in theory, should, but I would call Apple to be sure. The Apple store is very good about these things!