The Allen & Heath M-SQ-LINK-A is a 128x128 channel digital audio interface card for SQ Series mixers, enabling connectivity to Allen & Heath’s range of expanders and mixing systems at both 96kHz and 48kHz sample rates. Installed via the mixer’s I/O expansion slot, the SLink card allows flexible digital patching and system expansion, including connection to dLive, Avantis, GX, DX, or AB/AR stageboxes. Perfect for scalable live setups or installed AV systems.