---
product_id: 255612652
title: "Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3)"
brand: "sonnet"
price: "$960.81"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/255612652-sonnet-echo-express-se1-thunderbolt-3-expansion-chassis-echo-exp
store_origin: US
region: United States of America
---

# 40Gbps Thunderbolt 3 speed Daisy-chain up to 5 Thunderbolt devices PCIe 3.0 x8 slot for high-performance cards Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3)

**Brand:** sonnet
**Price:** $960.81
**Availability:** ✅ In Stock

## Summary

> ⚡ Expand Your Workflow, Shrink Your Desk Footprint

## Quick Answers

- **What is this?** Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) by sonnet
- **How much does it cost?** $960.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/255612652-sonnet-echo-express-se1-thunderbolt-3-expansion-chassis-echo-exp)

## Best For

- sonnet enthusiasts

## Why This Product

- Trusted sonnet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Energy Saver Mode:** Optimizes power consumption without sacrificing performance—perfect for the eco-conscious professional.
- • **Compact Yet Mighty Design:** Sleek, lightweight chassis fits on any desk while supporting nearly every Thunderbolt-compatible PCIe card at full power.
- • **Unleash PCIe Power Anywhere:** Connect high-performance PCIe cards to any Mac or Windows PC with Thunderbolt 3—no internal slots needed.
- • **Seamless Multi-Device Connectivity:** Two Thunderbolt 3 ports enable daisy-chaining up to five devices or driving dual 4K/one 5K displays effortlessly.
- • **Blazing Fast Thunderbolt 3 Interface:** Experience 40Gbps bandwidth delivering up to 2750 MB/s PCIe throughput—double the speed of Thunderbolt 2.

## Overview

The SonnetEcho Express SE1 is a compact Thunderbolt 3 expansion chassis that connects a single PCIe 3.0 x8 card to any Mac or Windows PC via a 40Gbps Thunderbolt 3 interface. It supports half-length, full-height PCIe cards, offers dual Thunderbolt 3 ports for daisy-chaining multiple devices or high-res displays, and includes an energy saver mode—all in a lightweight, space-saving design.

## Description

Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3)

## Features

- Connects a PCIe Expansion Card to Computers Without Slots—Use high-performance PCIe cards with any Mac or Windows PC with a Thunderbolt 3 port
- One PCIe 3.0 x8 Slot—Supports one half-length+ (up to 7.75 inches long), full-height, single-width PCIe card (plus one daughter card)
- 40Gbps Thunderbolt 3 Interface—Offers 2750 MB/s of PCIe bandwidth, doubling the performance of Thunderbolt 2;Energy Saver Mode
- Full Performance In a Small and Light Design—Takes up little space on the desktop, but large enough to support nearly every Thunderbolt-compatible PCIe card, at full performance
- Two Thunderbolt 3 (USB-C) Ports—One port reserved for connection to the computer; second port supports daisy-chaining of up to five additional Thunderbolt devices to your computer, attaching a single USB peripheral device, or connecting up to two 4K displays or one 5K display

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sonnet |
| Product Dimensions | 20.96 x 10.16 x 7.11 cm; 1.18 kg |
| Item model number | ECHO-EXP-SE1-T3 |
| Manufacturer | SONNET TECHNOLOGIES |
| Series | ECHO-EXP-SE1-T3 |
| Color | black |
| Graphics Card Interface | PCI Express |
| Number of USB 3.0 Ports | 3 |
| Operating System | Windows |
| Are Batteries Included | No |
| Item Weight | 1.18 Kilograms |

## Product Details

- **Brand:** Sonnet
- **Motherboard compatability:** Micro ATX
- **Case type:** Desktop
- **Recommended uses for product:** Professional Video Editing, Professional Audio Production, Data Transfer and Management, High-Performance Computing
- **Colour:** black

## Images

![Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) - Image 1](https://m.media-amazon.com/images/I/41fpFZ9VzfL.jpg)
![Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) - Image 2](https://m.media-amazon.com/images/I/51xsIQDC7-L.jpg)
![Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) - Image 3](https://m.media-amazon.com/images/I/513LJcjVeLL.jpg)
![Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) - Image 4](https://m.media-amazon.com/images/I/61FqviyMLwL.jpg)
![Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (ECHO-EXP-SE1-T3) - Image 5](https://m.media-amazon.com/images/I/41B3BBZmrIL.jpg)

## Questions & Answers

**Q: Does this work with the razer blade if I use a 1050ti?**
A: This product is not designed to work with graphic cards because it does not have adequate power.  Our product for graphic cards is our eGFX Breakaway Box

**Q: How much power (in wattage) is being sent to the pci-e lane?**
A: The SEL and SE I both send the PCIe specification to the x4 PCIe 2.0 slot: 25 Watts.

**Q: Is a Thunderbolt 3 (USB-C) cable included?**
A: Yes, all of Sonnet's Thunderbolt 3 and Thunderbolt 4 products include a Thunderbolt cable.

**Q: Would this work if i used a thunderbolt 3 to 2 adapter (i have a macbook pro 2013)and stuck a graphics card in it**
A: This would not be a very good product to use a graphics card with and especially if you are going to adapt it to thunderbolt 2. I do not believe that this is a fast enough port for modern day graphics cards. 
Try this product: https://www.amazon.com/Razer-Core-V2-Thunderbolt-Enclosure/dp/B0791ZCH4Q

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- Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*