06/01/2026
This is why we say if budget allows, go RME. We also get a lot of questions on USB2 and USB3, USB3 is only required when sending way over 32 channels of audio. USB3 is not 'Faster' than USB2 for audio, it always seems to comes back to cars but here goes.... If you have 4 cars on an 8 lane motorway they can all go at their top speed, if you add a further 8 lanes you don't increase the speed they can go at. USB3 is needed for REALLY big track counts (Often Madi, the MADIface XT II can do 394 channels at 192Khz!) or if you are running DSP alongside audio I/O (such as with the UAD USB3 offerings)
Thunderbolt options aren't used for more track counts, it's used for a more direct connection to the computer (think of Thunderbolt as connecting something directly to a PCIe card) but RME USB chips/drivers are so good that they will get down to the same low latency figures.
Sound On Sound explains this month, why USB by RME is superior to other USB implementations.
Bottom line: other manufacturers use a standard unoptimized XMOS USB chip. This solution is easy to implement, much cheaper, does not require specialized engineering and works with standard drivers. Voila, here comes a $200 interface.
RME on the other hand is going the other possible way, by recreating the USB protocol in an own chip, which fully exploits the limits of the standard (RME Pro Audio XCore). Channel count, latency, clocking, sync, fixes stability issues and more.
Additionally the code can be updated at any time, as the chip is fully re-programmable (FPGA). So even 15 years old RME interfaces still get updates, to work with the latest USB hardware - fast, reliable, usable!
On top of it: To achieve record low latencies with USB, it needs a special highly optimized driver. Only RME is doing both. RME interfaces are using a fully customized USB implementation, to the utter limits of the standard with a special driver technology, which delivers the same stability and speed on Mac OS and Windows. Ever tried to close your Macbook, while playing music and open it later? The music just continues to play, without a single buffer lost.
The article explains also, why USB2 and USB3 are not different, regarding stability or audio latency (except the channel count) and why Thunderbolt is not necessarily better, faster or more stable.
Conclusion: RME USB interfaces might be more expensive, but are faster, more stable, need less time for bug fixing, get all the driver updates and features in time and thus can be used 10 years or more with a high resale value ... and of course sound great.