This is a fully working two of two Mackie D8B UltraFX Expansion Card,Which came out of one of our mixers we sold. This Cardis designed for use with digital mixers. The expansion card is a product of the Mackie brand, known for its high-quality audio equipment. The UltraFX expansion card is likely to enhance the capabilities of the digital mixer, potentially adding new effects or functionalities to improve the overall audio mixing experience. A sought-after accessory for those looking to expand and upgrade their Mackie D8B digital mixer setup.if your looking to load your mixer please see my other items
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