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Sonnet Echo Express SE IIIe 40Gbps Thunderbolt 3 to 3-Slot PCIe Expansion Chassis
- Target Application: Desktop and mobile pro audio/video workflows, post-production suites, broadcast, and data acquisition requiring multi-card PCIe expansion on Thunderbolt-enabled Macs or PCs.
- 3-Slot PCIe Card Expansion: Connects up to three full-height, half-length (up to 7.75 inches) single-width PCIe 3.0 cards through a single Thunderbolt 3 connection.
- High-Speed 40Gbps Thunderbolt 3 Interface: Delivers up to 2750 MB/s of PCIe bandwidth to support high-performance video capture, pro audio DSP, 10GbE/25GbE networking, and NVMe SSD RAID controller cards.
- Dual Thunderbolt 3 Ports: Supports daisy-chaining of up to five additional Thunderbolt devices, plus external 4K/5K/6K displays.
- Upgraded 120W Power Supply: Includes an integrated power supply with a built-in 75W auxiliary power connector to drive power-hungry PCIe cards (such as RED ROCKET-X or Avid Pro Tools HDX).
- Ultra-Quiet Temperature-Controlled Fan: Automatically adjusts fan speed based on internal temperature to keep cards cool while maintaining whisper-quiet operation in quiet studio environments.
- Rugged Aluminum Enclosure: Durable, compact aluminum chassis provides superior EMI shielding and physical protection for installed expansion cards.
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Overview
Specs
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The Sonnet Echo Express SE IIIe (ECHO-EXP-SE3E-T3) is a compact, high-performance desktop Thunderbolt 3 expansion chassis designed to connect up to three full-height, half-length PCIe expansion cards to computers lacking internal card slots. Engineered for pro audio/video editors, broadcast engineers, and content creators, the Echo Express SE IIIe unlocks up to 2750 MB/s of PCIe bandwidth over a single 40Gbps Thunderbolt 3 connection.
Capable of housing non-GPU PCIe cardssuch as video capture/ingest interfaces, pro audio DSP cards (including Avid Pro Tools HDX), 10GbE/25GbE network adapters, SAS/SATA RAID controllers, and high-speed NVMe storage cardsthe SE IIIe brings full desktop-class expansion power to Thunderbolt-equipped Macs, Windows PCs, and iPad Pro units. Built into a rugged, lightweight aluminum chassis with an integrated quiet fan and dedicated 75W auxiliary power connector, it provides reliable cooling and power for demanding multi-card setups.
Key Features & Highlights- 3-Slot PCIe Expansion in a Desktop Footprint: Accommodates three full-height, half-length (up to 7.75 inches) single-width PCIe 3.0 cards simultaneously.
- 40Gbps Thunderbolt 3 Speed: Harnesses the full 2750 MB/s of available PCIe bandwidth to ensure optimal performance for high-throughput video, audio, and network cards.
- Pro Audio & Video Card Compatibility: Fully supports popular professional cards including Avid Pro Tools HDX, Blackmagic Design DeckLink, AJA KONA, RED ROCKET-X, and high-speed 10G/25G NICs.
- Dedicated 75W Auxiliary Power Connector: Equipped with an internal 6-pin auxiliary power connector to deliver extra power to power-hungry PCIe cards.
- Dual Thunderbolt 3 Ports: Supports daisy-chaining of up to five additional Thunderbolt peripherals or external displays (up to 4K/5K/6K).
- Quiet, Variable-Speed Thermal Management: Temperature-controlled fan automatically adjusts speed based on internal temperatures to keep cards cool without disruptive noise in silent studio settings.
- Rugged Aluminum Enclosure & Lock Clip: Compact aluminum chassis protects internal cards while shielding against electromagnetic interference; includes a Sonnet ThunderLok 3 connector clip to prevent accidental cable disconnects.
| SpecificationDetails | |
| Manufacturer Part Number | ECHO-EXP-SE3E-T3 |
| Expansion System Type | Desktop Thunderbolt 3 to PCIe Card Expansion System |
| PCIe Card Slots | 3x PCIe 3.0 Slots (Slot 1: x8 mechanical / x8 electrical | Slot 2: x8 mechanical / x8 electrical | Slot 3: x8 mechanical / x4 electrical) |
| Card Form Factor Compatibility | Full-Height, Half-Length (Up to 7.75 in / 19.7 cm), Single-Width PCIe Cards |
| Interface / Transfer Rate | 2x Thunderbolt 3 Ports (40Gbps / 2750 MB/s PCIe Bandwidth) |
| Auxiliary Power | Integrated 6-pin auxiliary power connector (provides up to 75W of auxiliary power) |
| Power Supply | Universal 120W External Power Adapter (100240V AC, 5060 Hz) |
| Display Support | Supports up to one 5K/6K display @ 60Hz or dual 4K displays @ 60Hz (via daisy chain/adapter) |
| OS Compatibility | macOS 10.12.6+, Windows 10/11 (64-bit), iPadOS 15.1+ (M1/M2/M3/M4 models) |
| Chassis Dimensions (W × D × H) | 6.5 × 11.0 × 4.6 in (16.5 × 27.9 × 11.7 cm) |
| Chassis Net Weight | 3.7 lbs (1.7 kg) |
| Boxed / Shipping Weight | ~6.7 to 7.3 lbs (~3.0 to 3.3 kg) |
| Box / Packaging Dimensions | ~16.4 × 10.5 × 8.1 in (~41.7 × 26.7 × 20.6 cm) |
| Country of Origin | Taiwan |
- Sonnet Echo Express SE IIIe Expansion System (ECHO-EXP-SE3E-T3)
- Universal 120W External Power Adapter & Power Cord
- 0.7m / 0.8m 40Gbps Thunderbolt 3 Cable
- Sonnet ThunderLok 3 Thunderbolt Connector Retainer Clip
- Quick Start Guide & Documentation
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 60 days
- This item is covered by Diversity IT Return Policy
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