VX222e-S is a professional linear (PCM) stereo sound card based on the PCI Express bus interface. It is designed for use in any professional PC-based audio system running under Windows and requiring balanced analog and AES/EBU connectivity. VX222e-S is the reference stereo PCM sound card designed for operating in continuous 24/7/365 use-environments as part of professional audio systems. It can be used with software applications based on standard driver interfaces such as WDM Kernel streaming, DirectSound, Wasapi, and ASIO for Windows. Compared to VX222e, it adds an AES11 sync input, a hardware sample rate converter on the AES/EBU input, and a word clock synchronization input.