Sonnet DuoModo Echo III Module: Professional 3-Slot Thunderbolt to PCIe Expansion
Unlock the full potential of your creative workflow with the Sonnet DuoModo™ Echo™ III Module. While modern laptops, Mac minis, and all-in-one computers are impressively powerful, they lack the critical PCIe expansion slots required for professional audio, video, networking, and storage hardware. The Echo III is the ultimate bridge, seamlessly connecting your compact computer to the high-performance PCIe cards that drive your most demanding projects. With a single Thunderbolt cable, you can instantly add three full-length PCIe slots, transforming your workstation into a production powerhouse.
Engineered for stability in professional environments, the Echo III is built to perform. It features a versatile combination of three PCIe 3.0 slots (one x16 and two x8) backed by a robust 400W internal power supply. This includes a 75W auxiliary power connector, ensuring even the most power-hungry cards receive consistent, reliable energy. As proof of its rock-solid engineering, the Echo III is fully qualified by Avid® to support up to three Pro Tools | HDX cards simultaneously, right out of the box—no extra adapters or power kits needed.
Performance is never a compromise. The 40Gbps Thunderbolt interface delivers a staggering 2750 MB/s of PCIe bandwidth, allowing your video capture cards, audio DSPs, and high-speed network adapters to operate at their maximum speed without bottlenecks. Worried about noise in your studio? The whisper-quiet dual Noctua fans are temperature-controlled and rated at a barely audible 17 dBA, making the Echo III a perfect, unobtrusive addition to any recording studio or editing suite. A second Thunderbolt port allows you to daisy-chain additional peripherals, and the included ThunderLok™ 3 retainer clip prevents accidental cable disconnections, securing your critical connections when it matters most.
Key Features
- Three Full-Length PCIe Slots: Instantly add one x16 and two x8 PCIe slots to any computer with a Thunderbolt port.
- Avid Pro Tools | HDX Qualified: Officially qualified to support up to three Avid HDX cards for maximum audio production power.
- Robust 400W Power Supply: An integrated PSU with a 75W auxiliary power connector handles the most power-demanding professional cards.
- Full 40Gbps Thunderbolt Performance: Delivers up to 2750 MB/s of bandwidth, ensuring your cards run at full speed.
- Whisper-Quiet Cooling: Dual temperature-controlled Noctua fans operate at a studio-friendly 17 dBA for noise-sensitive environments.
- Broad Card Compatibility: Supports all Thunderbolt-compatible non-GPU cards for video, audio, storage, and networking.
- Daisy-Chain Expansion: A second Thunderbolt port allows for connecting up to five additional Thunderbolt peripherals.
- Secure & Ready to Go: Includes a 0.7-meter Thunderbolt 3 cable and a ThunderLok 3 retainer clip to prevent accidental disconnects.
Technical Specifications
| Form Factor | Desktop PCIe Card Expansion System |
| External Connectors | 2x Thunderbolt 3 Ports |
| Internal Connectors | 1x 6-pin Mini-Fit Jr (for 75W auxiliary power) |
| Expansion Slots | 1x x16 mechanical (x8 electrical) PCIe 3.0 2x x8 mechanical (x8 electrical) PCIe 3.0 |
| Supported PCIe Cards | Up to three full-height, full-length, single-width cards |
| Power Supply | Universal 400W, 100-240V AC, 50-60 Hz |
| Operating Noise Level | 17 dBA |
| Computer Compatibility | Mac, Windows, or Linux computer with a Thunderbolt 4 or Thunderbolt 3 port. |
| macOS Compatibility | macOS 10.12.6+; Apple M-series compatible |
| Windows Compatibility | Windows 11 or 10 |
| Package Contents | DuoModo Echo III Module, Power Cord, 0.7m Thunderbolt 3 Cable, ThunderLok 3 Retainer Clip, Documentation |
Shipping policy
Any items which are in stock, will be dispatched immediately - same day if possible and morning of the following business day at the latest. Items which are not in stock at our local warehouse will be routed to us, and dispatched immediately upon arrival to us. In that case, the estimated dispatch time is noted on the product page.
Note that you are always welcome to email info@dittools.eu or call (+372) 5556 0057 for a more accurate shipping time estimate, as this does vary depending on a number of factors.
Standard shipping
Unless otherwise noted, all items are shipped standard via DPD. We normally ship to European Union countries only – do contact us for possible exceptions, particularly other European mainland countries. Shipping times vary between 1 to 10 business days within Europe – an up to date estimate will be given at checkout.
Express shipping
Our shipping partner for expedited deliveries is DHL Express; please contact us directly for a quote.
Returning an item
If you are not completely satisfied with your purchase, you can return your item(s) for a full refund within 14 days of confirmed delivery.
Special sales, demo items and promotions may have modified return policies. If an item from a bundle is returned for refund, the total bundle discount or the total value of the gifts will get deducted from the returned item prior to issuing a refund. If the bundle discount (or gift value) exceeds the value of the returned item, the difference must be paid to be able to return the item.
Return autorization
If you would like to return any item(s), please contact us by either emailing info@dittools.eu or calling (+372) 5556 0057. We will share with you a Return Merchandise Authorization (RMA) code and ask that you clearly mark this code outside of your shipping box as you ship your item(s) back for a refund.
You will be liable for the shipping and any applicable customs/duty fees returning the item(s).
Incorrect items
If the return is made due to a faulty product, or an incorrectly shipped product, or if you are returning the item(s) due to a defect, or functionality issue, or because it is not the item you have ordered, we will gladly email or mail a return shipping label covering all shipping related expenses. In order to determine whether the return is initiated due to a technical problem, we may ask for you to provide visual support like images or a video on the item(s).
Shipping
Returned merchandise must be in its original packaging, and placed in a decent shipping box, e.g. the same box that we shipped the items to you in. Please make sure to clearly mark the RMA code you have received from us outside on the box.
Do not forget to cover or peel off any existing shipping labels on the box.
DIT Supplies OÜ cannot be held accountable for return shipments that have not reached us or returns made without RMA codes. We strongly advise that if you are returning the item(s) with a carrier of your choice that you use a traceable shipping method.
It may take 4-5 business days for your return to reach us. Once it is received and inspected, your refund will be processed and automatically applied to your credit card or original method of payment within 14 business days. Please note that depending on your credit card company, it may take an additional 2-4 business days after your credit is applied for it to post to your account.
Customs, duties & taxes
There are no customs duties or taxes on orders shipping within the EU. Orders shipped outside of the EU may be subject to import taxes, customs duties and fees collected by the destination country. The recipient of an international shipment may be subject to such import taxes, customs duties and fees, which are collected once a shipment reaches the recipient's country. Additional charges for customs clearance must be paid for by the recipient; we have no control over these charges and cannot predict what they may be. Customs policies vary widely from country to country; and when customs clearance procedures are required, it can cause delays beyond our original delivery estimates. We advise that you contact your local customs office for more information.