Indeed, an ASIO driver with audio inputs only would be of a very limited usage. When you connect an audio interface with audio inputs only (a USB microphone for example, like the ST-USB from Prodipe), the ASIO driver uses your default audio interface for audio outputs.

The Prodipe ASIO driver is available for the 32 bits ('x86') and the 64 bits ('圆4') versions of Microsoft Windows. US-20x20 and Windows Device Manager shows the message that the driver does not have a digital signature. We have tested ASIO4ALL 2.14 against malware with several different. ASIO4ALL 2.14 is available to all software users as a free download for Windows. More, the ASIO Prodipe driver is optimized for the new generations of Windows (Vista, Seven and upcoming) by the support of the new audio features of these operating systems (ASAPI for Audio Session Application Programming Interface). 20-Channel USB Audio Interface / Digital Mixer. This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from drivers without restrictions. You can then create a configuration of 'virtual' audio interface (up to 8 input channels and 8 output channels in the current version). In addition, with the built-in function 'Prodipe ASIO Merge®', it allows you to use multiple Prodipe audio interfaces simultaneously. It allows reaching latencies near the millisecond (and even lower) depending on the power of your computer. Prodipe ASIO driver complies with the recommendations of the version 2.0 of the ASIO Protocol.

Asio 20 driver