Sonnet Echo III Rackmount TB3 PCIe, 3 Slots

With the Echo III Rackmount TB3, Sonnet offers an ideal solution for compact or mobile setups that need the performance of PCIe cards but lack available slots. This rugged steel enclosure accommodates up to three non-GPU PCIe cards and fits perfectly into any standard 19" / 2U rack format. The Echo III connects via Thunderbolt 3 to your Mac, Windows, or Linux computer provided it has a TB3 port and includes a second Thunderbolt 3 port for daisy chaining additional devices.

A thoughtful addition is the ThunderLok 3 retainer clip, which secures the Thunderbolt cable to prevent accidental disconnection. The unit also features quiet Noctua fans, ensuring near-silent operation even under load.

Power is supplied by a robust 400W Pro Power adapter with an additional 75W auxiliary power output, making the Echo III capable of supporting high-performance cards. For added efficiency, the device powers on and off automatically with your computer, helping to conserve energy. A high-quality Thunderbolt 3 cable is also included, so you can expand your setup right out of the box.