Echo Express SEL Thunderbolt 5 One-Slot Low-Profile PCIe Card Expansion System

One Low-Profile PCIe Slot
Supports one low-profile, half-length, single-width PCIe card up to 6.6 inches long.

PCIe 3.1 Connectivity
Features one x8 mechanical PCIe 3.1 slot with an x4 electrical connection for compatible expansion cards.

Broad PCIe Card Support
Supports compatible PCIe 4.0, 3.0, 2.0, and 1.1 cards for networking, video, Fibre Channel, storage, RAID, SAS, and SATA applications.

Compact Desktop Design
The space-saving enclosure provides PCIe expansion for notebooks, compact desktops, and all-in-one computers without internal expansion slots.

Rugged Aluminum Enclosure
Lightweight aluminum construction securely protects the installed PCIe card and internal components.

Quiet Cooling
A temperature-controlled, variable-speed fan automatically adjusts to provide efficient cooling while minimizing operating noise.

Dual Thunderbolt Ports
One Thunderbolt port connects to the host computer while the second supports an additional compatible Thunderbolt peripheral.

USB 3.2 Gen 2 Support
The secondary Thunderbolt port supports compatible USB devices at speeds up to 10 Gbps when used with the appropriate cable or adapter.

Peripheral Power
The secondary Thunderbolt port provides up to 15W of power to compatible bus-powered devices.

Display Connectivity
Supports connection of up to one 8K display, subject to the display capabilities of the connected computer.

Automatic Power Control
The system automatically powers on and off with the connected computer to simplify operation and conserve energy.

Secure Thunderbolt Connection
The included ThunderLok-A connector lock helps prevent accidental Thunderbolt cable disconnections.

General Specifications
Product Type: Thunderbolt to PCIe card expansion system
Form Factor: Desktop enclosure
Enclosure Material: Aluminum
Supported PCIe Cards: Low-profile, half-length, single-width cards
Maximum Card Length: 6.6 in

PCIe Specifications
Expansion Slots: 1
PCIe Slot: PCIe 3.1 x8 mechanical, x4 electrical
Supported PCIe Generations: PCIe 4.0, 3.0, 2.0, 1.1

Thunderbolt Specifications
Thunderbolt Ports: 2
Secondary Port Function: Thunderbolt peripheral daisy-chaining
USB Support: USB 3.2 Gen 2, up to 10 Gbps
Secondary Port Power: Up to 15W
Display Support: Up to 1 x 8K display

Power Specifications
Power Adapter: Universal 60W
Input Voltage: 100-240V AC
Input Frequency: 50-60 Hz
External Power Connector: 12V
Power Control: Automatic power on/off with connected computer

Cooling Specifications
Cooling: Variable-speed fan
Fan Control: Temperature-controlled

Computer Compatibility
Mac: Thunderbolt 5, Thunderbolt 4, Thunderbolt/USB4, or Thunderbolt 3 equipped Mac
Windows: Thunderbolt 5, Thunderbolt 4, or USB4 equipped computer
Linux: Thunderbolt 5, Thunderbolt 4, or USB4 equipped computer

Operating System Compatibility
macOS: macOS 15 or later
Windows: Windows 11 25H2 or later
Linux Kernel: 6.6 or later

Environmental Specifications
Operating Temperature: 0°C to 35°C (32°F to 95°F)

Dimensions and Weight
Width: 4 in (10.3 cm)
Depth: 8.25 in (21 cm)
Height: 2.8 in (7.28 cm)
Weight: 1.85 lb (0.84 kg)

Included Accessories
Power Adapter: Universal power adapter
Power Cable: Region-specific power cable
Thunderbolt Cable: 0.8 m Thunderbolt cable
Cable Lock: ThunderLok-A connector lock
Documentation: Product documentation