With a sleek design for incredibly lightweight laptops and desktops, the Echo Express SEL - Thunderbolt 3 Edition allows you to connect a low-profile PCIe card outside your computer. It supports Thunderbolt 3 at 40 Gb/s, offering double the speed of Thunderbolt 2 and up to 2750 MB/s PCIe bandwidth to support 4K video cards and 16 Gb FC cards.

The Echo Express SEL - Thunderbolt 3 Edition is compact, measuring 4 inches wide, 8.4 inches long, and 2.8 inches high, making it ideal for high-speed network cards and storage controllers. It features two Thunderbolt 3 (USB-C) ports, allowing for the connection of up to five additional peripherals.

The outer casing is made from durable aluminum, protecting the PCIe card, while the thermostatically controlled fan ensures the card stays cool. Designed for quiet operation, the Echo Express SEL can be used in noise-sensitive environments.