# Interface Card Sonnet BRD-UPGRTB3-E3

**URL:** https://aio.lv/en/product--sonnet-brd-upgrtb3-e3--3199715
**Data updated:** 2026-02-12 09:49 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Sonnet
**Manufacturer code:** BRD-UPGRTB3-E3
**EAN:** 0732311012273
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Sonnet BRD-UPGRTB3-E3 is an internal Thunderbolt 3 interface card with PCIe host interface. It supports data transfer rates up to 40 Gbit/s and a bandwidth of 1.75 Gbit/s. Compatible with Windows 10 and Mac OS X 10.12 and later, it works seamlessly with Echo Express III-D and III-R systems. The card is designed in green and silver, ensuring both functionality and style.

## Long description

The Sonnet BRD-UPGRTB3-E3 is an internal Thunderbolt 3 interface card with a PCIe host connector designed to add high-speed Thunderbolt 3 connectivity to compatible expansion systems. It supports data transfer rates up to 40 Gbit/s and provides a bandwidth of 1.75 Gbit/s for connected devices. Compatible with Windows 10 and macOS 10.12 (Sierra) and later, the card is intended for use with Echo Express III-D and III-R enclosures. The card is finished in green and silver, combining functional design with visual consistency for rack or desktop expansion systems.
Advantages
The interface card delivers Thunderbolt 3 performance with up to 40 Gbit/s transfer speeds and a stable PCIe host connection, enabling fast data movement and low-latency device access. Broad OS compatibility ensures operation under Windows 10 and modern macOS releases, while the design is purpose-built to integrate with Echo Express III-D and III-R chassis. Its internal form factor keeps external cabling minimal and maintains enclosure airflow and layout.
Suitable for
 Adding Thunderbolt 3 ports to Echo Express III-D and III-R expansion systems
 High-speed data transfer between PCIe devices and Thunderbolt 3 peripherals
 Workstations requiring low-latency connection for external storage, audio/video I/O, or GPU eGPUs
 Studio and post-production environments that need robust, internal Thunderbolt connectivity
Key specifications
 Interface type: Thunderbolt 3 (internal PCIe card)
 PCIe host connection: standard PCI Express form factor for compatible enclosures
 Maximum data transfer rate: up to 40 Gbit/s
 Bandwidth rating: 1.75 Gbit/s
 Operating system compatibility: Windows 10 and macOS 10.12 or later
 Compatible enclosures: Echo Express III-D and Echo Express III-R
 Color: green and silver
How to use
Install the card into the appropriate PCIe slot inside a compatible Echo Express III-D or III-R enclosure according to the chassis installation instructions. After securing the card, connect the enclosure to a host computer using a Thunderbolt 3 cable attached to the enclosure’s external Thunderbolt port. Ensure the host system runs a supported operating system (Windows 10 or macOS 10.12 and later) and apply any required drivers or firmware updates provided by the enclosure or system manufacturer. Verify recognition of attached Thunderbolt devices through the host OS device manager or system information utility.
Usage recommendations
Use high-quality Thunderbolt 3 cables rated for 40 Gbit/s to achieve maximum transfer speeds. Keep enclosure firmware and host OS updates current to maintain compatibility and stability. For sustained heavy data throughput, allow adequate airflow within the enclosure and avoid obstructing cooling paths to prevent thermal throttling.

## Specifications

### Operational conditions

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

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| Host interface | PCIe |
| Output interface | Thunderbolt 3 |

### Other features

| Feature | Value |
|---|---|
| Quantity | 1 |

### System requirements

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

### Design

| Feature | Value |
|---|---|
| Internal | Yes |
| Product colour | Silver, Green |

### Performance

| Feature | Value |
|---|---|
| Compatibility | Echo Express III-D, III-R |

### Packaging data

| Feature | Value |
|---|---|
| User guide | Yes |

### Features

| Feature | Value |
|---|---|
| Bandwidth | 1.75 Gbit/s |
| Data transfer rate (max) | 40 Gbit/s |

## FAQ

### 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: host interface, internal, output interface, 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.

## Image

https://aio.lv/img/cache/product/3199715/58273264_large.webp