--- product_id: 44351724 title: "Sonnet Thunderbolt 3 Upgrade Card for Echo Express III-D & III-R Expansion System" brand: "sonnet" price: "2998 kr" currency: DKK in_stock: true reviews_count: 1 category: "Sonnet" url: https://www.desertcart.dk/products/44351724-sonnet-thunderbolt-3-upgrade-card-for-echo-express-iii-d store_origin: DK region: Denmark --- # Thunderbolt 3 ports Mac & PC compatible 4K max resolution Sonnet Thunderbolt 3 Upgrade Card for Echo Express III-D & III-R Expansion System **Brand:** sonnet **Price:** 2998 kr **Availability:** ✅ In Stock ## Summary > ⚡ Elevate Your Setup with Thunderbolt 3 Power! ## Quick Answers - **What is this?** Sonnet Thunderbolt 3 Upgrade Card for Echo Express III-D & III-R Expansion System by sonnet - **How much does it cost?** 2998 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/44351724-sonnet-thunderbolt-3-upgrade-card-for-echo-express-iii-d) ## 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 - • **Compact Design:** Lightweight and sleek, perfect for any workspace. - • **Stunning Visuals:** Experience breathtaking 4K resolution for your projects. - • **Powerful Performance:** 16 GB RAM ensures smooth multitasking and graphics handling. - • **Seamless Compatibility:** Works flawlessly with both Mac and PC systems. - • **Unleash Your Potential:** Upgrade your Echo Express with Thunderbolt 3 speed! ## Overview The Sonnet Thunderbolt 3 Upgrade Card transforms your Echo Express III-D & III-R Expansion System, providing two Thunderbolt 3 (USB-C) ports for enhanced connectivity. Compatible with both Mac and PC, it supports a maximum screen resolution of 4K and features 16 GB of RAM for optimal performance. Weighing just 3.53 ounces, this upgrade card is designed for professionals seeking to boost their productivity and visual experience. ## Description Part No. BRD-UPGRTB3-E3 Step Up to 40Gbps Thunderbolt 3 Sonnet designed the Echo™ Express III-D and III-R Thunderbolt™ 2 to PCIe card expansion system to be easily upgraded to 40Gbps Thunderbolt 3. Simply replace the existing Thunderbolt interface board with the upgrade board, and then your chassis will instantly support higher performance, and connect to your Thunderbolt computer without the need for an adapter. Upgrade Instead of Adapting Why adapt when upgrading offers more? With the Thunderbolt 3 upgrade card installed you get: Easy to Install 40Gbps Thunderbolt 3 Upgrade Card –Replaces Existing 20Gbps Thunderbolt 2 Interface Board Improves Performance with High-Bandwidth PCIe Cards –Provides 30% More Bandwidth (Up to 1750 MB/s) Two Thunderbolt 3 Ports Compatible with Thunderbolt 3, Thunderbolt 4, and Thunderbolt/USB4 computers ThunderLok 3-compatible 2-year Product Warranty Free Lifetime Customer Technical Support Designed in the USA Pre-sales Questions?Contact support@sonnettech.com for info. WARNING: California's Proposition 65 Product specifications and information subject to change without notice. Computer hardware and accessories featured in photos that are not included with product are shown for illustration purposes; items sold separately. Review: Excelente calidad y funcionando al 100! Muy buen producto! - Muy buen producto! Lo recomiendo ampliamente! ## Features - INCREASED TRANSFER SPEED - Upgrade your Echo Express III-D/III-R with Thunderbolt 3, achieving speeds up to 40Gbps for rapid data transfer and enhanced workflow efficiency. - BROAD COMPATIBILITY - Seamlessly integrates with various systems; compatible with Macs (Thunderbolt 3 or 2 via adapter) and PCs (Windows 10, 8, 7) for versatile use. - ENHANCED STORAGE CAPACITY - Supports high-bandwidth storage devices, maximizing your system's potential for large file transfers and demanding applications, boosting productivity. - DURABLE AND RELIABLE - Built with high-quality components and RoHS compliant, ensuring long-lasting performance and environmental responsibility for professional use. - EASY INSTALLATION - Simple to install into existing Echo Express III-D/III-R Thunderbolt 2 chassis, minimizing downtime and maximizing productivity with minimal effort. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071H9VCGW | | Best Sellers Rank | #1,728 in Internal Computer Networking Cards | | Brand | Sonnet | | Compatible Devices | Desktop | | Customer Reviews | 5.0 out of 5 stars 4 Reviews | | Hardware Interface | Thunderbolt 3 | | Item Weight | 100 Grams | | Manufacturer | Sonnet Technologies | | Mfr Part Number | BRD-UPGRTB3-E3 | | Model Number | BRD-UPGRTB3-E3 | | Operating System | Mac OS, Windows 10 | | Style | Classic | | Style Name | Classic | | UPC | 732311012273 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Sonnet - **Hardware Interface:** Thunderbolt 3, Fibre Channel - **Style:** Classic - **Item Weight:** 100 Grams - **Compatible Devices:** Desktop ## Images ![Sonnet Thunderbolt 3 Upgrade Card for Echo Express III-D & III-R Expansion System - Image 1](https://m.media-amazon.com/images/I/71fWWZPeA4L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente calidad y funcionando al 100! Muy buen producto! *by C***L on July 8, 2020* Muy buen producto! Lo recomiendo ampliamente! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/44351724-sonnet-thunderbolt-3-upgrade-card-for-echo-express-iii-d](https://www.desertcart.dk/products/44351724-sonnet-thunderbolt-3-upgrade-card-for-echo-express-iii-d) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-06-03*