Compact, desktop 1-slot Thunderbolt 2-to-PCIe Card Expansion System for a low-profile PCIe card; features temperature-controlled fan and two Thunderbolt 2 ports to support daisy chaining of up to six devices. Upgradeable to Thunderbolt 3.
Desktop, 1-slot Thunderbolt 3-to-PCIe Card Expansion System for up to full-height, full-length+, double-width PCIe card. Features temperature-controlled fan, and two Thunderbolt 3 ports. Second Thunderbolt 3 port supports daisy chaining of up to five additional Thunderbolt peripheral devices, a single USB 3 Gen 1 (5Gb) or Gen 2 (10Gb) peripheral device, or one 5K or two 4K displays.