Mac Compatibility
- Mac (M series) with PCIe cards that have compatible drivers
- Mac (Intel®) with Thunderbolt 3 ports
- Mac (Intel) with a Thunderbolt 2 or Thunderbolt 1 port with an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter plus a Thunderbolt 2 cable (both sold separately)
- macOS® 10.12.6+
- macOS Sonoma compatible
Windows Compatibility
- Windows computer with Thunderbolt 4 or Thunderbolt 3(1) ports
- Windows 10
- Windows 11 22H2 build 22621.819 and newer
Linux Compatibility
- Linux computer with Thunderbolt 4 or Thunderbolt 3 ports
- Linux Kernel 5.4+
PCIe Card Compatibility
For a list of compatible PCIe cards, see the following PDF
Part Number
Warranty
Form Factor
- Thunderbolt rackmount enclosure
External Connectors
- Two Thunderbolt ports(2)
- 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, Top to Bottom)(3)
- 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, 50-60Hz(4)
Operating Temperature
- 0ºC to 35ºC (32ºF to 95ºF)
Dimensions (WxDxH)
- 19 x 16.5 x 3.6 in. (48.3 x 41.9 x 9.1 cm)
Weight
Compliance
- RoHS 3 (Directive 2015/863)
- IEC62368-1 and IEC62368-2 Safety
Package Contents
- Echo III Rackmount System
- Region-specific power cable for US, Australia, Europe, Japan, Switzerland, or UK
- 6-pin PCIe auxiliary power cable
- Thunderbolt 3 cable(5)
- ThunderLok 3 Thunderbolt connector retainer clip(6)
- Extension rails for rack depth 16-24 inches
- Documentation
- While the Echo III Rackmount features a 40Gbps Thunderbolt interface, some Windows computers equipped with Thunderbolt 3 use an x2 PCIe lane implementation of Thunderbolt 3 technology that limits PCIe performance to 20Gbps.
- Second Thunderbolt port supports USB 3.2 Gen 1 (5Gb) or Gen 2 (10Gb) devices when connected with proper cable or adapter (sold separately).
- When set to HDX compatibility mode, PCIe slots operate in PCIe 2.0 mode and the chassis’ bandwidth is limited to 1750 MB/s.
- Power supply will operate as low as 90VAC, with linear power derating from 400W @ 115VAC to 320W @ 90VAC.
- Full performance requires the use of the included or comparable 40Gbps Thunderbolt cables; look for the Thunderbolt icon AND the number 3 on the connector housings to identify these cables. Full performance supported by any Thunderbolt 4 cable.
- ThunderLok 3 compatible specifically with Sonnet 0.5- and 0.7-meter Thunderbolt 3 cables.
