The Echo Express SE I Thunderbolt 3 to PCIe Card Expansion System from Sonnet provides a PCIe 3.0 x8 slot for Thunderbolt 3-equipped notebooks, SFF desktop systems, and other computers without a PCIe slot. The Echo Express SE I supports full-height PCIe cards, featuring a length up to 7.75". For supporting a wide variety of PCI cards, it sports one expansion slot that can accommodate double-width PCI cards or single-width PCI cards coming with a daughter card.

It is suitable for connecting one professional video capture, audio interface, SAS or SATA HBA, 16Gb or 8Gb Fibre Channel, 10Gb Ethernet, or RAID controller PCIe card, which operates over the Thunderbolt connection. There's also an integrated variable-speed fan for cooling your PCI card and the SE I's internal components. The Echo Express SE I Thunderbolt 3 to PCIe Card Expansion System comes with two Thunderbolt 3 ports, letting you daisy chain up to six Thunderbolt devices to your computer.

• Thunderbolt 3 Interface
• 2 x Thunderbolt 3 (USB Type-C) Ports
• 1 x PCIe 3.0 x8 Slot
• Supports Full-Height, Half-Length Cards
• Temperature-Controlled Fan
• Thunderbolt Cable & ThunderLok Included