Sonnet Echo III Black Aluminium 1

Connects up to three high-performance non-GPU PCIe cards via a Thunderboltcable to your computer lacking expansion slots One 16x plus two 8x slots support three full-height, single-width cards, or one double-width card plus one single-width card 40Gbps Thunderbolt 3 interface offers 2750 MB/s of bandwidth, doubling the performance capabilities of Thunderbolt 2 Integrated 400W power supply with 75W auxiliary power. Saves energy by powering on/off automatically with the computer Dual temperature-controlled, variable-speed Noctua fans rated at 17dBA automatically and quietly cool the cards