The Sonnet Echo III Desktop (Thunderbolt 3 Edition) is a versatile desktop expansion system that connects up to three full-length PCIe cards to any computer with Thunderbolt 3 or Thunderbolt 4 ports. This system features three PCIe 3.0 slots, providing ample space for high-performance cards such as audio, video, fiber, RAID, and ethernet PCIe cards. With a robust aluminum housing and an energy-efficient design, it delivers 15W of power to connected peripherals. The system includes a 0.7-meter Thunderbolt 3 cable that supports full 2750 MB/s bandwidth and up to 100W power delivery. It is compatible with Mac, Windows, and Linux and comes with a 2-year product warranty and free lifetime technical support.