Sonnet Echo II DV Thunderbolt 5 Desktop PCIe Expansion Chassis

The Sonnet Echo II DV Desktop Two-Slot Full-Length Thunderbolt 5 PCIe Card Expansion System transforms your Mac into a professional workstation by adding two full-length PCIe 4.0 x16 slots through dual Thunderbolt 5 connections. Built for MacBook Pro, Mac mini (M4 Pro/Max), and Mac Studio (M4 Max/M3 Ultra), this chassis solves the PCIe slot shortage that video professionals face when running high-bandwidth cards like video I/O interfaces, NVMe storage arrays, or multi-port network adapters. Each slot gets its own dedicated 6000 MB/s bandwidth through separate Thunderbolt 5 controllers, meaning your cards run at full speed simultaneously without competing for bandwidth, which matters when you're capturing uncompressed 4K footage while editing off high-speed storage.

Dual Independent Thunderbolt 5 Controllers

Unlike cheaper expansion systems that split one Thunderbolt connection between multiple slots, the Echo II DV includes separate Thunderbolt 5 controllers for each PCIe slot. This architecture delivers 6000 MB/s to each card independently when connected to two Thunderbolt 5 ports on your Mac. Your video I/O card won't throttle your storage performance, and your network adapter won't slow down your capture card, because each has dedicated bandwidth to the computer.

Professional Power Delivery

The integrated 400W power supply includes dual 75W auxiliary power connectors, providing enough clean power for demanding PCIe cards that need more than slot power alone. Dual cooling fans keep temperatures stable during extended recording sessions or render jobs, protecting both your investment and your footage.

Built for Bandwidth-Hungry Workflows

Thunderbolt 5's 80 Gb/s bi-directional speed (with bursts to 120 Gb/s for display bandwidth) means this system handles workflows that would choke previous-generation connections. Whether you're working with multiple 4K streams, uncompressed video I/O, or arrays of NVMe drives, the Echo II DV provides the throughput professional video work demands.

What Works in This System

• Video I/O cards for capture and playback
• NVMe SSD storage adapter cards for high-speed media drives
• Multi-port 25Gb Ethernet adapters for network storage workflows
• Audio interface cards requiring PCIe connectivity
• Full-height, full-length PCIe 4.0 cards up to x16

Portable Aluminium Construction

The rugged aluminium housing protects your cards while remaining compact enough for transport between studio and location. The desktop form factor fits naturally into edit suites and production environments without requiring rack mounting.

Mac Compatibility

• MacBook Pro with M4 Pro or M4 Max
• Mac mini with M4 Pro or M4 Max
• Mac Studio with M4 Max or M3 Ultra

What's Included

• Two Thunderbolt 5 cables for connection to your Mac
• Integrated 400W power supply with dual 75W auxiliary connectors
• Dual cooling fans for thermal management

Important Note

This system requires standard copper Thunderbolt 5 cables and will not work with optical Thunderbolt cables. The included cables are provided for immediate use.