The real fork is specialized function versus direct usb microphones
Desktop audio interfaces win when they can connect an XLR microphone, headphones, and sometimes speakers with controlled gain and low-latency monitoring and that function removes a known recurring problem. direct USB microphones win when they reach the same outcome with fewer dependencies, less maintenance, a more understandable failure mode, or a cleaner return path.
Normalize input count and connector type and phantom power and preamp gain
Compare both paths across the same desk, body position, computer, operating system, cable reach, workday, and shared-device routine, with every required dependency included. A complete desktop audio interfaces package should not be compared with an incomplete alternative, and a retailer headline should not replace product-level compatibility evidence.
Use direct-monitor mix and headphone power and USB driver, loopback, and operating-system support as tie-breakers
In a desktop audio interfaces comparison, direct-monitor mix and headphone power and USB driver, loopback, and operating-system support reveal the friction that appears after an attractive demo. Choose the path that can be installed, used, cleaned, updated, and recovered by the people who will actually own it. Prefer the simpler failure mode when performance is otherwise close.
Compare ownership, not only purchase price
Desktop audio interfaces bring an ownership path of driver updates, USB cable, knobs and jacks, firmware, sample-rate conflicts, and support after an operating-system upgrade. Price that against the maintenance and replacement work of direct usb microphones over one normal year. Include the value of time and the cost of losing the service while a proprietary part, account, or repair is unavailable.
Make the choice reversible
Use this test path before the return window closes: install supported drivers, connect one source, set gain below clipping, verify direct monitoring, and document app input and output selections. Preserve the old setup and packaging until the product survives normal use. Choose the alternative immediately when only one simple USB microphone is needed, driver support is weak, or unused inputs and routing would add daily failure points.