: A comprehensive list of drivers for different sub-models (Intel, SIS, VIA) and operating systems can be found on Driver Scape C-Media CMI8738 (C3DX HSP56) : For retro hardware builds, The Retro Web
: On some motherboards, the HSP56 acts as both. If you are only looking for the audio component, drivers for the hsp56 sound card driver link
Because the HSP56 driver was never built for modern OS, you disable driver signature enforcement temporarily. : A comprehensive list of drivers for different
For the modem-audio combo units, Driver Scape offers versions compatible with Windows XP through Windows 10 (32-bit). hsp56 sound card driver link
: Original PCTEL HSP56 drivers for older systems (Windows 95/98/2000) are preserved on TechSpot. HSP56 MR Drivers Download for Windows 10, 8.1, 7, Vista, XP