Sonnet Echo III T5 Desktop Thunderbolt Expansion System
Sonnet Echo III T5 Desktop, Three PCIe Slots, Thunberbolt 5, Avid Qualified
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Sonnet Echo III T5 Desktop
Pro Expansion. Right On Your Desktop.Discover the Sonnet Echo III T5 Desktop, a high-performance Thunderbolt 5 PCIe expansion chassis that adds three full-length PCIe card slots to compatible Mac, Windows, and Linux computers. With one x16 and two x8 PCIe 3.1 slots, the Echo III T5 Desktop supports video capture cards, audio DSP and Pro Tools HDX systems, 10GbE and 25GbE networking, SSD storage, SAS HBAs, and other professional PCIe cards. Its 400W power supply, 75W auxiliary power connector, dual Thunderbolt 5 ports, and quiet dual-fan cooling make it an ideal desktop expansion solution for creative professionals who need reliable PCIe connectivity without opening their computer.
Build a Powerful Desktop Creative Studio
Connect Three Full-length Pro PCIe CardsToday’s laptop and mini desktop computers with ultra-high-performance Thunderbolt™ 5 ports offer tremendous onboard processing power, but lack the PCIe slots needed to connect adapter cards that provide specialized ports and processing capabilities essential to professional audio and video production workflows. Echo III T5 Desktop provides the slots you need. Using the included Thunderbolt 5 cable, this professional expansion system connects up to three PCIe cards (up to 12.28 inches long) to the latest Macs, Windows PCs, and Linux computers. Add nearly any compatible (non-GPU) PCIe card to create the purpose-built setup your workflow demands.
Three PCIe 3.1 Slots
Comprehensive PCIe Card SupportEcho III T5 Desktop features one x16 and two x8 PCIe 3.1 slots. When connected to a Thunderbolt 5 computer port, it provides them 3400 MB/s aggregate, bi-directional PCIe bandwidth. This system supports single-and double-width, PCIe 4.0, 3.1, 2.0, and 1.1 cards including video capture, streaming and transcoding; audio DSP; 25Gb Ethernet; SSD storage; SAS host bus adapter; and other specialty types.
Video
Audio
SAS
Networking
SSD
Daughter Cards Welcome
Expansion for More Video ConnectionsInstall cards such as the Blackmagic Design DeckLink 4K Extreme 12G or DeckLink 8K Pro G2 with their daughter cards attached, keeping those additional connections available for your workflow.
Avid Qualified for Pro Tools
No Extra Parts RequiredAt the flick of a switch, the Avid compatible Echo III T5 Desktop system is optimized to support three Pro Tools | HDX PCIe cards. This system has been tested and qualified by Avid Audio Group for use with Avid Pro Tools 2026 software and Avid Pro Tools, Pro Tools HD, and Pro Tools Ultimate systems.
Yes, It’s Compatible!
Windows & macOS CompatibilityEcho III T5 Desktop is compatible with all Apple M series Macs and Thunderbolt 5, 4, and USB4 Windows and Linux computers.
Key Features
Adds Connectivity & CapabilitiesConnects up to three high-performance non-GPU PCIe cards via a Thunderbolt cable to your computer lacking expansion slots.
Thunderbolt 5 to PCIe DeviceProvides 3400 MB/s aggregate, bi-directional PCIe bandwidth to the installed cards when connected to a Thunderbolt 5 computer port.
Three PCIe 3.1 SlotsOne x16 plus two x8 slots support three full-height, single-width cards, or one double-width card plus one single-width card.
Broad PCIe Card CompatibilityEvery Thunderbolt compatible, non-GPU card supported regardless of length or height.
Avid Pro Tools | HDX CompatibleHDX compatibility mode enables use of up to three Pro Tools | HDX PCIe cards with no additional parts needed.
Pro PowerIntegrated 400W power supply with 75W auxiliary power. Saves energy by powering on/off automatically with the computer.
Remarkably QuietDual temperature-controlled, variable-speed Noctua fans rated at 17 dBA automatically and quietly cool the cards.
Rugged Aluminium HousingProvides robust and secure protection.
Computer CompatibilityCompatible with Mac, Windows, and Linux.
Power to Spare. Smart Operation.
Supports Power-hungry CardsEcho III T5 Desktop supports power-hungry cards with ease. Its integrated universal 400W power supply includes a 75W auxiliary power connector for non-GPU cards that require extra power, including AJA Kona 5, Avid Pro Tools | HDX, and Blackmagic DeckLink 8K Pro G2 and 4K Extreme 12G. Designed without a power switch, the Echo III powers on and off automatically with the connected computer to help conserve energy. And with no power switch, you can’t forget to turn off the system!
Made for Low-Noise Environments
Dual Noctua FansEcho III T5 Desktop is built for noise-sensitive environments, delivering ultra-quiet performance with dual Noctua fans that operate below the recommended 20 dBA limit for recording and broadcast studios. The temperature-controlled fans’ speeds adjust smoothly as needed, while optimized airflow efficiently cools installed cards, keeping the system quiet under demanding workloads.
Light, Yet Rugged
Built for the Work AheadThe Echo III T5 Desktop uses a lightweight, rugged aluminum outer shell to securely house the inner assembly that holds the installed PCIe cards and the integrated power supply.
Secure Connections for High Performance
Thunderbolt Cable & ThunderLok IncludedSonnet includes a Thunderbolt cable engineered to deliver Thunderbolt 5’s full bandwidth and power delivery performance. The cable is fully compatible with Thunderbolt 5, 4, and 3, and USB4 computers. A Sonnet ThunderLok Thunderbolt connector lock is also included to prevent accidental cable disconnections.
ThunderLok AdvantageMany Sonnet Thunderbolt products featuring Thunderbolt ports come equipped with threaded mounting holes to securely attach a Sonnet ThunderLok connector lock, preventing Thunderbolt cables from accidentally disconnecting.
More Than Just the Latest Thunderbolt
Echo III T5 Desktop features an ultra-high speed Thunderbolt interface that delivers ample PCIe bandwidth required to support most combinations of installed PCIe cards. While one port is reserved for connecting your computer, the secondary port enables connection of an additional Thunderbolt or USB peripheral device.
15WPowers Peripherals15 watts is provided to bus-powered USB or Thunderbolt devices requiring extra power through the secondary Thunderbolt port.
5KConnect One Display Using Spare BandwidthMaximize the utilization of one computer Thunderbolt port, connecting a 5K display while retaining full PCIe bandwidth.
PayPal Credit
| Monthly Payment: | £136.49 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,506.49 |
| Total inc. interest: | £1,637.77 |
| Monthly Payment: | £73.56 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,506.49 |
| Total inc. interest: | £1,765.40 |
| Monthly Payment: | £52.76 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,506.49 |
| Total inc. interest: | £1,899.05 |
| Monthly Payment: | £42.48 |
| Instalment Rate: | 16.9% p.a. (fixed) |
| Cost of purchase: | £1,506.49 |
| Total inc. interest: | £2,038.80 |
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