---
product_id: 38591076
title: "Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3)"
brand: "sonnet"
price: "AR$1361360"
currency: ARS
in_stock: true
reviews_count: 13
category: "Sonnet"
url: https://www.desertcart.com.ar/products/38591076-echo-express-se1-thunderbolt-3-expansion-chassis-echo-exp-se
store_origin: AR
region: Argentina
---

# 40Gbps Thunderbolt 3 speed Daisy-chain up to 5 devices PCIe 3.0 x8 slot support Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3)

**Brand:** sonnet
**Price:** AR$1361360
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your workstation with PCIe power on demand!

## Quick Answers

- **What is this?** Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3) by sonnet
- **How much does it cost?** AR$1361360 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/38591076-echo-express-se1-thunderbolt-3-expansion-chassis-echo-exp-se)

## 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

- • **Plug & Play Simplicity:** Power syncs with your computer—no extra switches, just instant expansion for your professional workflow.
- • **Compact Yet Mighty Design:** Sleek, space-saving chassis that supports nearly every Thunderbolt-compatible PCIe card at full speed.
- • **Unleash PCIe Power Anywhere:** Connect high-performance PCIe cards to any Thunderbolt 3 Mac or Windows PC—no slots needed.
- • **Seamless Multi-Device Daisy-Chaining:** Expand your setup effortlessly by connecting up to five additional Thunderbolt devices or multiple 4K/5K displays.
- • **Blazing 40Gbps Thunderbolt 3 Interface:** Experience double the bandwidth of Thunderbolt 2 with ultra-fast 2750 MB/s PCIe throughput.

## Overview

The Sonnet Echo Express SE1 is a compact Thunderbolt 3 expansion chassis that enables professionals to connect a single PCIe 3.0 x8 card to any Mac or Windows PC with Thunderbolt 3. Delivering up to 40Gbps bandwidth, it supports high-performance PCIe cards like RAID controllers and audio interfaces, while its dual Thunderbolt 3 ports allow daisy-chaining multiple devices or high-res displays. Designed for space-conscious pros, it offers full PCIe performance in a sleek, portable form factor.

## Description

Buy Sonnet Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3): Computer Cases - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works well and compact - but noisy fan needs replacement and no power switch - I am using this to convert my old Areca 1880i RAID controller to an external Thunderbolt 3 RAID card by adding a PCI bracket with SFF-8088 connections to the SFF-8087 connections on the RAID card. The enclosure looks nice, is compact, and the power brick isn't too large. However, for the minuses, the included 60mm fan is somewhat loud, and uses this strange metal bracket to direct the airflow, which seems to be rather pointless. There's plenty of space for a larger fan, depending on the size of your 2nd PCI bracket or daughtercard, so I replaced it with an 80mm be Quiet Silent Wings 2 fan, which improved the noise profile a lot. The 80mm fan can only screw in one corner unless you drill some holes. For me, a single screw held in tight was stable enough. For the other minus, there is no power switch - it is always on, but will turn on/off when your computer turns on/off. Fair enough, but sometimes I don't want the additional fan noise and would like to manually turn it off. I plan on hooking it up to a power strip with individual toggles to fix that issue. Overall, I'd say it works very well for it's intended purpose. Originally I was thinking of getting a eGPU enclosure, but those are very large and with overspecced power supplies - this enclosure is perfect for smaller PCIe cards like RAID, capture card, etc. I'm glad I went with this one.
Review: Works with audiophile sound USB cards - I am using the Sonnet Echo as a PCIe extension to my Macbook M2 to house an audiophile USB sound card. Works fine, the Mac Audio MIDI Setup sees the DAC through the Sonnet. I'm aware that the box works with both Pink Faun USB bridges and at least one JCat USB card.

## 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 (not to be used as a GPU chassis)
- 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
- 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(5) devices to your computer, attaching a single USB(6) peripheral device, or connecting up to two 4K displays or one 5K display(4)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MTP2XMZ |
| Best Sellers Rank | #509 in Computer Cases |
| Brand | Sonnet |
| Color | black |
| Customer Reviews | 4.4 4.4 out of 5 stars (160) |
| Date First Available | January 14, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 8.25 x 4 x 2.8 inches |
| Item Weight | 2.6 pounds |
| Item model number | ECHO-EXP-SE1-T3 |
| Manufacturer | SONNETTECH |
| Operating System | Windows |
| Product Dimensions | 8.25 x 4 x 2.8 inches |
| Series | ECHO-EXP-SE1-T3 |

## Product Details

- **Brand:** Sonnet
- **Case Type:** Desktop
- **Color:** black
- **Cooling Method:** Air
- **Item Weight:** 2.6 Pounds
- **Model Name:** ECHO-EXP-SE1-T3
- **Motherboard Compatability:** Mini ITX
- **Number of Expansion Slots:** 1
- **Power Supply Mounting Type:** Bottom Mount
- **Product Dimensions:** 3.5"D x 5.6"W x 3.5"H

## Images

![Echo Express SE1 Thunderbolt 3 Expansion Chassis (Echo-EXP-SE!-T3) - Image 1](https://m.media-amazon.com/images/I/41fpFZ9VzfL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well and compact - but noisy fan needs replacement and no power switch
*by A***. on June 27, 2019*

I am using this to convert my old Areca 1880i RAID controller to an external Thunderbolt 3 RAID card by adding a PCI bracket with SFF-8088 connections to the SFF-8087 connections on the RAID card. The enclosure looks nice, is compact, and the power brick isn't too large. However, for the minuses, the included 60mm fan is somewhat loud, and uses this strange metal bracket to direct the airflow, which seems to be rather pointless. There's plenty of space for a larger fan, depending on the size of your 2nd PCI bracket or daughtercard, so I replaced it with an 80mm be Quiet Silent Wings 2 fan, which improved the noise profile a lot. The 80mm fan can only screw in one corner unless you drill some holes. For me, a single screw held in tight was stable enough. For the other minus, there is no power switch - it is always on, but will turn on/off when your computer turns on/off. Fair enough, but sometimes I don't want the additional fan noise and would like to manually turn it off. I plan on hooking it up to a power strip with individual toggles to fix that issue. Overall, I'd say it works very well for it's intended purpose. Originally I was thinking of getting a eGPU enclosure, but those are very large and with overspecced power supplies - this enclosure is perfect for smaller PCIe cards like RAID, capture card, etc. I'm glad I went with this one.

### ⭐⭐⭐⭐⭐ Works with audiophile sound USB cards
*by F***N on May 28, 2025*

I am using the Sonnet Echo as a PCIe extension to my Macbook M2 to house an audiophile USB sound card. Works fine, the Mac Audio MIDI Setup sees the DAC through the Sonnet. I'm aware that the box works with both Pink Faun USB bridges and at least one JCat USB card.

### ⭐⭐⭐⭐⭐ Its Sonnetech so it just works.
*by J***B on June 8, 2025*

I never have to worry when I order from Sonnet. Their products just work. This worked perfectly for my Universal Audio Octo Card. Some have complained they can hear the fan. I have it 10 feet away and if I'm in dead silence I and listening for it, I can barely hear it. So it is really a non issue. I can't imagine people with it sitting in total silence and not listening to music or a podcast. If not in TOTAL SILENCE, you won't hear it.

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-20*