Today's laptop, mini desktop, and all-in-one computers pack tons of power. In fact, they're more powerful than the full-sized towers of yesteryear. To top it off, thanks to modern Thunderbolt connectivity, today's computers support a vast array of peripherals with blazing-fast speeds. But what's missing are PCIe expansion slots — a must-have feature for creative professionals. That's where the Sonnet Technologies Echo III Rackmount comes in. This cutting-edge system enables you to connect three full-length PCIe cards to your Thunderbolt 3-equipped computer — simultaneously — with a single cable. If you've been eyeing a high-powered portable computer, but don't want to part with your PCIe-based rig, the Echo III Rackmount is the perfect solution.
The Echo III Rackmount makes expanding your computer a breeze. Simply plug it into one of your machine's Thunderbolt 3 ports, and you'll benefit from 2750 MB/s of PCIe bandwidth. The Echo III Rackmount accommodates three full-height, single-width cards, or one double-width card plus one single-width card. At Sweetwater, we've found that this expansion system supports nearly every Thunderbolt 3-compatible, non-GPU PCIe 1.1/2.0/3.0 card out there — video capture, video transcoding, audio DSP, 6GB/12GB SAS and SATA host bus adapter, 10GB/25GB Ethernet, SSD storage, and a whole lot more — it all works. No Thunderbolt 3 port? No worries. The Echo III Rackmount is backwards compatible with Thunderbolt 2-equipped Macs (requires a special adapter and cable — sold separately).


The latest generation of Mac mini and iMac Pro computers are multi-core beasts. They boast all the power your hungry Pro Tools sessions need. Unfortunately, they lack PCIe ports. In the past, this would make them unsuitable for Pro Tools HDX systems. But now, thanks to the Sonnet Technologies Echo III Rackmount, any computer with a Thunderbolt 3 port is fair game. The Echo III Rackmount supports up to three HDX PCIe cards, and it has been tested and qualified for use with the latest Pro Tools Ultimate software, as well as with Pro Tools HDX and HD Native systems.
The Echo III Rackmount is laden with state-of-the-art features. Its integrated 400W power supply includes 75W of auxiliary power, and it saves energy by automatically powering on and off with your computer. This system's dual temperature-controlled, variable-speed Noctua fans are rated at 17dBA for whisper-quiet cooling. You also get a second Thunderbolt 3 port for easy daisy-chaining of up to five additional Thunderbolt-equipped peripherals; 10Gbps USB 3.2 Gen 2 support allows you to connect a USB device to the second port (requires a special adapter — sold separately). The Echo III Rackmount provides 15W of power to bus-powered peripherals, and it supports connecting one 5K display or two 4K displays. A rugged steel rackmount housing rounds out the Echo III Rackmount's impressive design.

| Specification | Detail |
|---|---|
| Form Factor | 2U Rackmount |
| Number of Ports | 3 x Single-width Full-length Full-height PCIe Cards or 1 x Double-width PCIe Card plus 1 x Single-width PCIe Card |
| Connection Type | 2 x Thunderbolt 3 |
| Compatibility | Avid Pro Tools HDX |
| Power Source | Standard IEC AC cable |
| Dimensions | 19" x 16" x 3.48" |
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