Skip to content
Free Next Working Day Delivery On Orders Over £100 ex VAT.
Trade customer? Call 0208 1919 223 for exclusive trade pricing and priority stock access.*
Availability:
6 in stock
Save £28.45 Save £28.45

£348.54 (Excl. VAT)

Current price - £418.25 (Inc. VAT)
£348.54 - £348.54
Current price- - £418.25
Availability:
6 in stock
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Google Pay
  • Paypal
  • Shop Pay
  • Klarna
  • Bank Transfer (BACS)
Trade pricing for verified resellers, proforma issued on official company letterhead for PO processing.
Education & Public Sector Pricing available for schools, universities, NHS, and government organisations. Contact our Public Sector Team on 020 8191 9223 or email info@screenmoove.com.
  • Description
  • Specifications
  • Single-Slot PCIe Expansion for Mac & Windows

    Connect a Full-Height, Half-Length+ PCIe Card to Computers Without Expansion Slots
    Are you in the market for a new computer? It’s amazing how much processing power the latest ultra-light notebooks, small form factor computers, and all-in-one desktop computers pack in such small and thin enclosures. But, thinness comes with a cost—there’s nowhere for you to install PCIe cards for the additional connectivity and processing capabilities beyond what’s offered by a computer’s standard ports. Although thin Mac® and Windows®(1) computers with Thunderbolt™ 3 ports offer processing power to spare, for many, such as pros in the creative fields, onboard processing power alone is not enough. Fortunately, your choices are not limited to desktop workstations—think external. With the Echo™ Express SE I (Thunderbolt 3 Edition), Sonnet has created a solution that enables you to connect a single PCIe card outside of your computer. This compact desktop expansion system supports one professional video capture, audio interface, 6Gb or 12Gb SAS or SATA host bus adapter, 8Gb or 16Gb Fibre Channel, 10Gb or 40Gb Ethernet, or RAID controller PCIe card, and connects it to your computer through a thin cable.

    The Echo Express SE I (Thunderbolt 3 Edition) features a 40Gbps Thunderbolt 3 interface, which offers double the PCIe bandwidth and connectivity of Thunderbolt 2, and yields up to 2750 MB/s of bandwidth, enabling it to support 4K video capture and processing cards at high frame rates, and 16Gb FC cards and dual-port 10GbE cards at full performance(2)(3). With the ability to handle multiple demanding, high performance PCIe cards, support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz(4), and support for a vast array of Thunderbolt(5) and USB(6) devices, Thunderbolt 3 is a leap forward in every way.

    One PCIe 3.0 Slot and Space for a Daughter Card
    The Echo Express SE I features an x8 PCIe slot, and supports one half-length+, full-height, single- or double-width PCIe card. Double-width? Some pro video and audio interface cards, such as Blackmagic Design’s DeckLink 4K Extreme, and RME’s HDSPe MADI FX card, include a daughter card that mates with and provides additional external connections to the main card. The daughter card occupies the adjacent space without filling a PCIe slot.

    Thunderbolt 3 — The USB C That Does It All
    The Echo Express SE I (Thunderbolt 3 Edition) includes two Thunderbolt 3 ports; the first connects it to your computer, while the second supports daisy chaining of up to five additional Thunderbolt peripheral devices to a single port on your computer. The SE I includes 10Gbps USB 3.1 Gen 2 support, meaning you can connect a USB device to the second port using the proper cable or adapter. The SE I also provides full support for connecting two 4K displays @ 60Hz or one 5K display @ 60Hz(4). For connected peripherals requiring extra power, 15 watts is provided to connected bus-powered devices.

    All-Around Smart Design
    The Echo Express SE I's lightweight, yet rugged aluminum outer shell securely protects the installed PCIe card. Inside, the card is protected through the use of a variable-speed, temperature-controlled fan, which ensures that the card and chassis’ components remain reliably cool. The Echo SE I’s fan automatically speeds up as necessary to cool the installed card when it’s hot, and slows down when it’s cool. Since Echo Express products automatically power on and off with your computer, there is no power switch on the chassis, ensuring you don’t waste energy by forgetting to turn it off.

    Nearly Every Thunderbolt 3-Compatible PCIe Card Supported
    Designed to accommodate cards up to 7.75 inches long and measuring a compact 5.6 inches wide by 8.6 inches long by 3.5 inches tall, the Echo Express SE I has a small footprint, yet it is large enough to support nearly every Thunderbolt 3-compatible PCIe 3.0, PCIe 2.0, and PCIe 1.1 card available.

    Do you have a card in mind but aren’t sure it’s compatible? We’ve worked closely with PCIe card manufacturers to provide a list of compatible cards on our supporting PCIe Card Thunderbolt Compatibility Chart. The chart provides a list of cards that have been tested to be recognized over a Thunderbolt connection and compatible with Thunderbolt technology requirements.

    Quiet, Please
    The Echo Express SE I was designed to be ultra-quiet so that it can be comfortably used in noise-sensitive environments. The airflow path within the chassis has been specially designed to enable the temperature-controlled, variable speed fan to quietly and efficiently cool the installed card at all times, even during peak operation.

  • Internal No Product colour Black
    Country of Origin United States of America Tariff No. 8471800000
    UNSPSC Code 43201552 Operating temperature (T-T) 0 - 35 °C
    Gross Weight (Package, kg) 2.12 kg Cables included AC, Thunderbolt
    User guide Yes Host interface Thunderbolt 3
    Output interface PCIe Net Weight (Product, kg) 1.91 kg
    Product Depth 22.01 cm Product Height 8.85 cm
    Product Width 14.29 cm Mac OS supported Mac OS X 10.12 Sierra, 10.13 High Sierra, 10.14 Mojave
    Windows OS supported Windows 10 (All Editions) Compliance certificates RoHS
    Sustainability certificates RoHS Brand Name Sonnet
    Warranty 1 Year(s)
Sonnet Echo Express SE I Thunderbolt 3 PCIe Expansion | ECHO-EXP-SE1-T3
Sonnet Echo Express SE I Thunderbolt 3 PCIe Expansion | ECHO-EXP-SE1-T3
SKU: ECHO-EXP-SE1-T3
🚚 Order before 3PM, get it by tomorrow.
Sonnet Echo Express SE I Thunderbolt 3 PCIe Expansion | ECHO-EXP-SE1-T3
SKU: ECHO-EXP-SE1-T3
🚚 Order before 3PM, get it by tomorrow.
Next-Day Delivery

Same-day shipping

Trade Account

Trade account available

Trusted Customers

See Our Latest Reviews

Public Sector Friendly

We Accept Purchase Orders

Trusted Store Status

Top Quality Store

Rating status, Exceptional, based on Google’s shopping experience metrics.
Exceptional

Why it matters

Demonstrates consistently strong fulfilment, service, and post-sale experience across Google signals.

Google
Top Quality Store
Built for confidence, next-day delivery options, UK-based support, trade-ready operations.
Request a quote
TRADE PARTNER PROGRAM

Looking for a Better Price?

Apply for a Screen Moove trade account and unlock exclusive pricing on commercial displays, digital signage, LED displays, mounting solutions and professional AV products.

Exclusive trade pricing Bulk order discounts Dedicated account manager Priority stock support White label delivery to end users Fast UK nationwide delivery
500+ Business Customers
15,000 sq ft UK Warehouse
1,000+ Displays Managed
Next-Business Day Delivery Available
Screen Moove Trade Partner

Register now

Send your details and our team will review your application for trade pricing.
By submitting this form, you confirm that you have read and agree to our Terms & Conditions .

Have more questions ? Talk to our experts...

Schedule a Free Consultation

Speak with our team about your display, digital signage, CMS, mounting or installation requirement. We will help you choose the right commercial AV solution before you spend money on the wrong product.

Display Specification Advice

We help you choose the correct screen size, brightness, orientation, operating hours and product type for the real environment.

Mounting & Installation Guidance

Need wall mounting, ceiling mounting, floorstands, video wall brackets or full installation support? We can advise the practical route.

CMS & Content Support

For menu boards, retail signage, reception screens and internal communication displays, we can guide you on CMS setup and content control.

Trade, Education & Multi-Site Projects

For resellers, schools, councils, contractors and multi-site businesses, we support fast quotations, project pricing and rollout planning.

Android Windows Ubuntu LG webOS

Get in Touch

Share the basic project details and we will recommend the right commercial display, CMS option and support route.

Ready to start your next AV project?

Contact our team of experts today!

Contact Us