Key Features
Compatibility
Product Description
Sonnet Echo II DV T5 Rackmount – 2U Thunderbolt 5 PCIe Expansion System
The Sonnet Echo II DV T5 Rackmount is a professional 2U Thunderbolt 5 expansion system designed to add high-performance PCIe card capability to rack-based workflows. Built for studios, production environments, and enterprise installations, it enables you to integrate two full-length PCIe cards into modern Thunderbolt 5 systems while maintaining clean rack organisation.
With Thunderbolt 5 connectivity delivering ultra-high bandwidth, the Echo II DV T5 Rackmount is ideal for video capture cards, high-speed networking, storage controllers, and other demanding PCIe hardware. The robust 2U rackmount enclosure ensures reliable cooling, secure installation, and seamless integration into professional AV and IT infrastructures.
Designed for performance and flexibility, this system provides enterprise-level expansion while maintaining compatibility with Thunderbolt 5, Thunderbolt 4, and USB4 host systems.
- 2U rackmount Thunderbolt 5 PCIe expansion system
- Supports two full-length, full-height, single-width PCIe cards
- High-bandwidth Thunderbolt 5 connectivity
- Integrated auxiliary power for PCIe cards
- Professional rack-ready design for studio and enterprise environments
- Compatible with Thunderbolt 5, Thunderbolt 4, and USB4 systems
Included:
- Echo II DV T5 Rackmount System
- Region-specific power cable
- Two 6-pin PCIe auxiliary power cables (installed)
- Two 0.8-meter Thunderbolt 5 cables
- Three ThunderLok-A connector locks
- Documentation
Product Q&A
Q: How many PCIe cards can this unit support?
A: It supports two full-length, full-height, single-width PCIe cards.
Q: What host connection does it use?
A: It connects via Thunderbolt 5 and is compatible with Thunderbolt 4 and USB4 hosts.
Q: Does it provide power for PCIe cards?
A: Yes, it includes two 6-pin auxiliary power connectors providing up to 75W each.
Q: Is this suitable for rack installations?
A: Yes, it is a 2U rackmount enclosure designed for professional installations.
Q: Are Thunderbolt cables included?
A: Yes, two 0.8-meter Thunderbolt 5 cables are included.





Specifications
-
Part Number
ECHO-2RDV-T5
-
Warranty
2-year -
Form Factor
2U Thunderbolt rackmount enclosure -
External Connectors
Four Thunderbolt ports
Power (C14-type) -
Thunderbolt 5 Computer Ports
Cables Supported: Thunderbolt 5 or Thunderbolt 4 cables
Cables Not Supported: Thunderbolt optical cables -
Thunderbolt Peripheral Ports
(Note that the downstream ports are not necessarily Thunderbolt 5 ports; they are the same as the host ports (Thunderbolt 5, Thunderbolt 4, or USB4).) -
Connectivity
With USB-C connector -
Peripherals Supported
Thunderbolt 5, 4, 3 devices
USB4, 3, 2, 1 devices
Thunderbolt 5, 4, 3, and USB-C monitors
DisplayPort and HDMI monitors (Thunderbolt compatible adapter required, sold separately) -
Internal Connectors
Two 6-pin auxiliary power; provide up to 75W of power each for PCIe cards that require supplemental power -
Expansion Slots
Two x16 mechanical (x4 electrical) PCIe 4.0 -
PCIe Cards Supported
Two full-length, full-height, single-width PCIe cards -
Power Supply
Universal 400W, 115-230V AC, 50-60 Hz -
Operating Temperature
0ºC to 35ºC (32ºF to 95ºF) -
Dimensions (WxDxH)
3.5 x 16.7 x 9 in. (8.9 x 42.4 x 22.9 cm) -
Weight
9.7 lbs (4.40 kg) -
Compliance
RoHS 3 (Directive 2015/863)
IEC62368-1 and IEC62368-2 -
Package Contents
Echo II DV T5 Rackmount System
Region-specific power cable
Two 6-pin PCIe auxiliary power cables (installed)
Two 0.8-meter Thunderbolt 5 cables
Three ThunderLok-A connector locks
Documentation
Compatibility
To support maximum performance when using two bandwidth-hungry PCIe cards, Echo II DV T5 Rackmount requires the following:
- Two connections between the Echo II DV T5 module and the host computer(s) with two Thunderbolt 5 ports with independent PCIe bandwidth.
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For example:
Mac (M4 Pro, M4 Max, M3 Ultra series)
Some pro Windows laptops with two Thunderbolt 5 ports
Connecting each card to a different Thunderbolt 5 computer
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- Mac with Thunderbolt 5 ports
- Mac with Thunderbolt 4 ports
- Mac with Thunderbolt 3 ports
- Windows computer with Thunderbolt 5 ports
- Windows computer with Thunderbolt 4 ports
- Windows computer with Thunderbolt 3 ports
Technical Notes
1. Intel Macs with Thunderbolt 3 ports require macOS 15+.
2. USB4 support requires that your computer have a “USB4 Host Router (Microsoft)”. Navigate to Device Manager and expand the Universal Serial Bus controllers category to confirm.
Product Videos
Shipping, Returns & VAT
- Free UK Shipping: Delivered in approx. 2 working days
- Express Options: Faster methods available at checkout
- Free Shipping to Ireland: For orders over £100.00
- International Delivery: Times vary by destination; shipped via FedEx or DHL
- 30-Day Returns: Return within 30 days from order date
- UK, Ireland and EU Customers: Free return label provided
- Full Return Policy: Read Here
- Full Shipping Details: Read Here
VAT & Duties Information
UK & EU Customers: The price shown on our website is the final price you pay. No additional VAT, customs duties, or import fees will be charged upon delivery.
Orders are dispatched from Northern Ireland, allowing us to serve customers across the United Kingdom and the European Union without unexpected import charges.
Non-UK and non-EU destinations: Local taxes, customs duties, and import fees may apply and are the responsibility of the recipient.
Payment
Safe payment on our website.
Pay by card, Klarna, PayPal, Apple Pay, G-Pay, Shop Pay, Revolut, Bancontact, iDeal, or even bank transfer.
Customer Service
Email and chat available 24/7
Free number UK: 08001954072
International: +442838341148
Phone Line Opening Hours
- Monday - Friday: 09:00-17:00
