This compact Thunderbolt™ 3 dock is built for productivity, transforming your Thunderbolt 3 laptop into a dual-4K workstation with up to 40Gbps of throughput. The high- performance dock featuresa PCIe M.2 SSD slot for enhanced data storage, three USB ports, an SD card reader, a Gigabit Ethernet port, a downstream Thunderbolt 3 port for daisy-chaining, plus 85W Power Delivery.