USB Type C vs Type B

[Charlemagne Kid]

Is there a disadvantage in the fact that Model 24 uses USB Type A to Type B but the Model 12 uses USB Type C?

 

[Hammarlund]

Not really in this context.

Yes: the more recent tech can possibly will push more over a USB-C cable than over a Type A/B (see https://www.tripplite.com/products/usb-connectivity-types-standards.)

But while you might think it's an issue, it really isn't, at least here. Everything operates at the slowest speed in the chain, and the cable is not the limiting factor here.

For example, consult the .wav file-size calculator at https://www.colincrawley.com/audio-file-size-calculator/ and you can see that at 48kHz/24but you're talking about well under 200KILOBYTES/second/channel, it actually shows up as ~140k/s/c.

That seems like a lot--and it is, in a sense--but even an old-spec USB 2.0 cable has a theoretical max speed of 480MEGABYTES/second, i.e. 480,000 kilobytes; at 200 K/channel that's 2,400 channels! And the USB 3.0 or 3.1 systems--which include type A and B ports--are 10x the speed.

Of course, you'll never see that speed because there's always something slowing it down. For example, the fancy Transcend 256G memory card is unusually fast *for a memory card* but only has a read speed of "up to" 95 megabytes/second: That's more than enough to handle the Tascam, but only a fraction of the max speed of even a USB 2.0 cable. When you're accessing the SD in your Tascam, you'll only get the speed of your card!

(Another way to look at it: USB 3.2 will easily handle a gig/second with ample headroom (it's rated up to 5G, or 10G/sec for gen2), and it works with type A and B. And even live 8k video takes less than a gig/second.)

 

[Charlemagne Kid]

Thanks for the answer Hammarlund...