Expands Small Machines: Use video capture, high-speed fiber/Ethernet, NVMe RAID, audio I/O, and other cards to unlock the potential of MacBooks, Mac Studio, Mac mini, and other space-constrained computers lacking a PCIe slot Internal Class Speed: Over 6000MB/s bandwidth available for simultaneous read/write Pro Level Card Ready: (1) PCIe 4.0 x4 (x16 mechanical slot) for half-length, full-height, single or double-width cards Expanded Connectivity: Three Thunderbolt 5 (USB-C) 80Gb/s ports each with 15W power delivery for more device, display, and drive possibilities 3 Year OWC Limited Warranty