Thunderbolt™ 3 40Gb/s Ports / Daisy Chain support for up to 6 devices Dual Ultra-Quiet, High-Efficiency Cooling Fans Easily install nearly any full-height/full-length PCIe 3.0 card (Storage I/O, Networking, Video, Sound) Versatile Storage & Connectivity Expansion; NVMe RAID Drives, USB/eSATA/Mini-SAS connectivity Ultra-Compact & Portable Thunderbolt™ 3 PCIe Expansion Chassis - transform your notebook into a compact media workstation! The RocketStor 6661A allows you to quickly add any PCIe x4, x8 or x16 card to your Thunderbolt™ 3 capable computing platform; such as media capture, Ethernet, Fibre Channel, or external Storage/RAID controller cards. Like it's processor, The lightweight, small-footprint design is ideal for compact workstations and mobile computing platforms such as iMacs, MacBook's Pros and Razor notebooks. At just 7 inches tall, and less than 3 inches wide, the RocketStor 6661A is small enough to pack into a laptop bag, yet is capable of supporting full-sized PCIe 3.0 add-in cards. Efficient Chassis Design keeps temperatures in check during Heavy Workloads PCIe devices, such as networking, video and hardware RAID cards can generate a great deal of waste heat during heavy I/O; an efficient, reliable, cooling system is an essential component of any PCIe expansion solution. The RocketStor 6661A was designed to accommodate performance intensive applications. The ventilated, all-aluminum chassis and dual cooling fans keep temperatures in check during high-stress workloads. Simple Plug and Play Installation The RocketStor 6661A can be easily added to any Thunderbolt™ 3 capable Mac & PC platform via a single cable connection. Quick release thumbscrews and a slidable chassis cover make adding or removing PCIe cards a snap!