Sonnet Echo Express SE I Thunderbolt 3 PCIe Expansion Chassis – Compact 1-Slot Enclosure

The Sonnet Echo Express SE I Thunderbolt 3 Expansion Chassis is a compact desktop 1-slot Thunderbolt expansion system, designed to add professional PCIe connectivity to any Thunderbolt 3 or Thunderbolt 4 equipped Mac, Windows, or Linux computer. This low-profile PCIe card expansion solution enables you to connect high-performance PCIe cards, including media capture, audio DSP, network, and SSD storage cards, with ease.

Whether you’re working in video production, audio processing, or need fast networking and storage solutions, the Echo Express SE I offers desktop-class PCIe expandability in an ultra-compact, portable form factor. Made from rugged aluminum, this enclosure provides superior cooling and low noise, making it perfect for both studio and mobile workflows.

Key Features:

• Compact 1-Slot Thunderbolt Expansion System – Supports one half-length (up to 7.75"), full-height, single-width PCIe card.
  
• High-Speed Thunderbolt 3 Interface – Up to 2750 MB/s data transfer rate.
  
• Low-Profile PCIe Card Expansion – Ideal for video capture, audio DSP, 10GbE networking, and SSD storage cards.
  
• Quiet and Efficient Cooling – Intelligent, temperature-controlled fan for optimized airflow and low noise operation.
  
• Broad Compatibility – Works with macOS, Windows, and Linux systems equipped with Thunderbolt 3 or Thunderbolt 4 ports.
  
• Built for Pro Applications – Supports PCIe 3.0 x8 cards for high-performance workflows.
  
• Compact and Rugged Design – Small enough to fit on a desk; durable aluminum enclosure protects internal components.
• Warranty - 2-Year Manufacturer Warranty – Covers defects in materials and workmanship.

What’s in the Box?

1 × Sonnet Echo Express SE I Thunderbolt 3 Expansion Chassis
1 × 0.7- meter Thunderbolt cable(3)
1 × Region-specific power cable UK or EU
1 × ThunderLok (Thunderbolt connector retainer clip)(4)
1 × Setup Guide

Technical Notes

1. While the Echo Express SEL 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.
   
2. Second Thunderbolt port supports USB 3.2 Gen 1 (5Gb) or Gen 2 (10Gb) devices when connected with proper cable or adapter (sold separately).
   
3. Full performance requires the use of the included Thunderbolt cable or any Thunderbolt 5, 4, or 3 cable; not Thunderbolt 20Gbps cables. Look for the Thunderbolt icon and the number 5, 4, or 3 on the connector housings to identify 40Gbps or better Thunderbolt cables.
   
4. ThunderLok compatible specifically with Sonnet 0.5- and 0.7-meter Thunderbolt cables.