# Sonnet Echo Express SEL interface cards/adapter PCIe

**URL:** https://aio.lv/en/product--sonnet-echo-exp-sel-t3--1732510
**Data updated:** 2025-12-29 07:48 (EET)
**Category:** NAS Devices & Storage
**Manufacturer:** Sonnet
**Manufacturer code:** ECHO-EXP-SEL-T3
**EAN:** 0732311012044
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 497.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 411.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonnet-echo-exp-sel-t3--1732510

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Sonnet Echo Express SEL is a PCIe interface adapter with Thunderbolt 3 connectivity. It supports PCI 3.0 expansion cards and is compatible with Windows 10 and Mac OS X 10.12 Sierra to 10.14 Mojave. The compact design (103 mm width, 210 mm depth, 72.8 mm height) includes necessary cables such as AC and Thunderbolt, making it a versatile solution for expanding your system's capabilities.

## Long description

The Sonnet Echo Express SEL (Thunderbolt 3 Edition) is a compact external PCIe expansion enclosure that lets you connect a single low-profile PCIe 3.0 card to computers without internal expansion slots via a Thunderbolt 3 connection. With an x8 PCIe 3.0 slot and 40Gbps Thunderbolt 3 throughput, it supports a range of cards including 16Gb and 8Gb Fibre Channel, 40Gb and 10Gb Ethernet, video capture and processing, SAS/SATA host bus adapters, and RAID controllers. The chassis measures approximately 103 mm x 210 mm x 72.8 mm and weighs 0.84 kg, offering a small-footprint solution for adding high-performance PCIe functionality to thin laptops and small-form-factor desktops.
Advantages
The unit provides up to 2750 MB/s of PCIe bandwidth over Thunderbolt 3, enabling full performance for demanding cards such as 16Gb Fibre Channel and dual-port 10GbE, and supporting 4K video capture and processing at high frame rates. It includes two Thunderbolt 3 ports — one for the host connection and one for daisy-chaining additional Thunderbolt devices — plus USB 3.1 Gen 2 compatibility on the second port and 15 W bus-power support for connected devices. The aluminum enclosure, temperature-controlled variable-speed fan, and quiet airflow design protect installed cards while maintaining low noise during operation. A 0.5 m Thunderbolt 3 cable and a ThunderLok 3 retainer clip are included for secure connection to the chassis.
Suitable for
Adding a single low-profile PCIe 3.0 card to laptops and compact desktops
Connecting high-speed networking cards (10GbE / 40GbE) and Fibre Channel adapters
Using external video capture or processing PCIe cards for 4K workflows
Attaching SAS/SATA host bus adapters or RAID controller cards
Key specifications
Interface: Thunderbolt 3 (40 Gbps)
PCIe slot: x8 PCIe 3.0 (low-profile card support)
Max PCIe bandwidth: up to ~2750 MB/s
Dimensions (W×D×H): 103 mm × 210 mm × 72.8 mm (approx. 4 × 8.4 × 2.8 in)
Weight: 0.84 kg
Material: Aluminum chassis
Included accessories: 0.5 m Thunderbolt 3 cable, ThunderLok 3 retainer, AC power cable
Operating displays: supports two 4K @ 60Hz or one 5K @ 60Hz when connected
How to use
Install a compatible low-profile PCIe card into the x8 PCIe 3.0 slot following the card manufacturer’s instructions and secure it inside the chassis. Connect the Echo Express SEL to your Thunderbolt 3-equipped computer using the included 0.5 m Thunderbolt 3 cable and, if desired, use the ThunderLok 3 clip to secure the cable to the chassis. Plug in the AC power cable; the enclosure will power on and off automatically with your computer. If required, daisy-chain additional Thunderbolt devices from the second Thunderbolt 3 port, or connect USB devices using the appropriate cable or adapter to the secondary port.
Usage recommendations
Use ThunderLok 3 to prevent accidental disconnects; ensure your PCIe card is supported on your host operating system (compatible with macOS and Windows versions specified by the card and Sonnet). Allow adequate ventilation around the enclosure and keep firmware and drivers for your PCIe card and host computer up to date for optimal performance.

## Specifications

| Feature | Value |
|---|---|
| Internal | No |
| User guide | Yes |
| Output interface | PCIe |
| Expansion card standard | PCI 3.0 |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 35 |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.84 kg |
| Height | 72.8 mm |
| Width | 103 mm |
| Depth | 210 mm |

### Software

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 10 Pro x64, Windows 10 x64, Windows 10, Windows 10 Pro, Windows 10 IOT Core, Windows 10 Home x64, Windows 10 Home, Windows 10 Enterprise x64, Windows 10 Enterprise, Windows 10 Education x64, Windows 10 Education |
| Mac operating systems supported | Mac OS X 10.14 Mojave, Mac OS X 10.13 High Sierra, Mac OS X 10.12 Sierra |

### Other features

| Feature | Value |
|---|---|
| Host interface | Thunderbolt 3 |
| Compliance certificates | RoHS |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | AC, Thunderbolt |

## FAQ

### How much does the Sonnet Echo Express SEL interface cards/adapter PCIe cost, and is it available for purchase?

The price is 497.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Sonnet products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Sonnet service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Sonnet Echo Express SEL interface cards/adapter PCIe?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1732510/64749067_large.webp