Echo III Desktop Echo-3D-TB3 3-slot Desktop Thunderbolt to PCIe Card Expansion System for Computers with Thunderbolt 4 or Thunderbolt 3 Ports Specifications: Part Number ECHO-3D-TB3 Warranty 2-year Form Factor Thunderbolt desktop enclosure External Connectors Two Thunderbolt ports Power (C14-type) Internal Connector 6-pin Mini-Fit Jr (same type as on legacy Mac Pro motherboard; provides up to 75W of power for PCIe cards that require supplemental power) Expansion Slots (Facing Rear, Left to Right) One x8 mechanical (x8 electrical) PCIe 3.0 One x16 mechanical (x8 electrical) PCIe 3.0 One x8 mechanical (x4 electrical) PCIe 3.0 PCIe Cards Supported Three full-length, full-height, single-width PCIe cards or One full-length, full-height, double-width PCIe card, plus one single-width card Power Supply Universal 400W, 115-230V AC, 50-60 Hz Operating Temperature 0ºC to 35ºC (32ºF to 95ºF) Dimensions (WxDxH) 3.5 x 16.7 x 9 in. (8.9 x 42.4 x 22.9 cm) Weight 9.7 lbs (4.40 kg) Compliance RoHS 3 (Directive 2015/863) IEC62368-1 and IEC62368-2 Safety Package Contents Echo III Desktop System Region-specific power cable for US, Australia, Europe, Japan, Switzerland, or UK 6-pin PCIe auxiliary power cable Thunderbolt cable ThunderLok 3 Thunderbolt connector retainer clip Documentation