M.2 22x80 key M slot for PCIe x4 Gen 4 NVMe SSD M.2 22x42 key B slot for PCIe x1 Gen 3, USB 3.2 Gen 2, USB 2.0, and SATA SSD expandability Support in tall chassis for third SSD with 2.5drive capability (up to 15mm tall) Smaller, Faster, Better, AI ReadyThe ASUS NUC brand represents a commitment to technological excellence, prioritizing innovative product design, to push the boundaries of performance and user experience.Developed through a partnership between ASUS and Intel, the ASUS NUC product lines anchor on delivering uncompromised performance in the smallest form factors, backed by industry best quality and reliability, innovative modular designs, extended lifespan options, smart cooling solutions, and advanced AI capabilities. The versatility of the products shines through an array of configurations catering to diverse user needs, from developers, to power users, to casual home use. Positioned as the preferred choice for a variety of business applications, vertical industries, a