Sonnet Echo 21 Thunderbolt 5 SuperDock 10Gb Ethernet 140W Dock with NVMe SSD Slot

Sonnet Echo 21 Thunderbolt 5 SuperDock 10Gb Ethernet 140W Docking Station with NVMe SSD Slot

The Sonnet Echo 21 Thunderbolt 5 SuperDock is a professional-grade 21-port docking station designed for advanced workstation setups, creator workflows, and high-performance connectivity. Building on the powerful Echo 20 platform, the Echo 21 adds an integrated M.2 NVMe SSD slot, allowing users to install their own SSD for fast built-in storage expansion.

Designed for demanding Mac and Windows environments, the Echo 21 combines Thunderbolt 5 performance, triple display support, 10 Gigabit Ethernet, high-speed USB connectivity, SD card readers, audio connections, and up to 140W laptop charging in a single desktop dock.

With support for multiple Thunderbolt devices, high-resolution displays, professional networking, and user-installed NVMe storage, the Echo 21 is an ideal solution for content creators, video editors, photographers, audio professionals, and advanced workstation users.

Key Features

• 21-port Thunderbolt 5 docking station with integrated M.2 NVMe SSD slot
• Supports user-installed NVMe SSD for high-speed storage expansion
• 10 Gigabit Ethernet connectivity for professional networking
• Triple display support with Thunderbolt 5 bandwidth
• Up to 140W laptop charging for demanding workstation systems
• Multiple Thunderbolt 5, USB-C, USB-A, HDMI and DisplayPort connections
• Integrated SD and microSD UHS-II card readers
• Ideal for creator workflows, editing suites and professional desktop setups

Included

• Sonnet Echo 21 Thunderbolt 5 SuperDock
• Power adapter
• Region-specific power cord
• 0.8-meter Thunderbolt 5 cable
• Documentation PDF

Product Q&A

Q: What is the difference between Echo 20 and Echo 21?

A: The Echo 21 includes an integrated M.2 NVMe SSD slot, allowing users to install their own high-speed SSD for additional internal storage expansion.

Q: Does the dock include an SSD?

A: No. The M.2 NVMe SSD is user-installed and sold separately.

Q: What networking speed does it support?

A: The dock includes a built-in 10 Gigabit Ethernet port supporting 10GBASE-T networking.

Q: Can this dock support multiple displays?

A: Yes. The Echo 21 supports triple display configurations depending on the connected computer and operating system.

Q: Is this suitable for creators and editing workflows?

A: Yes. The combination of Thunderbolt 5 bandwidth, 10Gb Ethernet, high-speed storage support, and multi-display capability makes it ideal for professional creator workflows.

Specifications

• Product Type:
  Thunderbolt 5 docking station with integrated M.2 NVMe SSD slot
• Thunderbolt Ports:
  Three Thunderbolt 5 ports
• Networking:
  10 Gigabit Ethernet (RJ45)
• Video Outputs:
  HDMI port
  DisplayPort port
• USB Connectivity:
  One USB-C 15W charging port
  Four USB-C 7.5W charging ports
  Four USB-A 10Gbps ports
• Storage Expansion:
  Integrated M.2 NVMe SSD slot
  User-installed SSD supported
• Card Readers:
  UHS-II SD card slot
  UHS-II microSD card slot
• Audio Connections:
  3.5mm headphone and microphone jack
  3.5mm microphone jack
  Stereo RCA line out
• Power Delivery:
  Up to 140W laptop charging
• Display Support:
  Triple display support depending on host system capability
• Ethernet Support:
  10GBASE-T
  5GBASE-T
  2.5GBASE-T
  Gigabit Ethernet
• Supported Devices:
  Thunderbolt 5 devices
  Thunderbolt 4 devices
  Thunderbolt 3 devices
  USB4 devices
  USB-C peripherals
• Cooling:
  Integrated active cooling system
• Security:
  Kensington security slot support
• Power Supply:
  Universal power adapter included
• Warranty:
  2-year
• Product Documentation: PDF

Compatibility

• Mac Compatibility:
  macOS 15+
  macOS Tahoe compatible
• Mac Display Compatibility:
  One Display:
  M1, M2, M3 base models
  Two Displays:
  M4, M5 base models
  M1, M2, M3, M4 Pro and Max models
  Intel Macs supporting macOS 15+
  Three Displays:
  M4 Max models
  M5 Pro and Max models
  Four Displays:
  M5 Max models (requires daisy chain connection of one display). View displays Compatibility PDF for details
• Windows Compatibility:
  Windows 11 (24H2 or newer with latest updates)
• Intel CPU Compatibility:
  11th Gen – Not Compatible
  12th Gen – Compatible
  13th Gen – Compatible
  14th Gen – Compatible
  Core Ultra 1 – Compatible (see Tech Note regarding SSD speed)
  Core Ultra 2 – Compatible (see Tech Note regarding SSD speed)
• AMD Compatibility:
  AMD computers with USB4 ports should be compatible
  Typically supports one display (may support none or two depending on system)
• Windows Display Compatibility:
  Two Displays:
  Compatible Thunderbolt 5 systems with integrated graphics
  Compatible Thunderbolt 4 systems
  Three Displays:
  Thunderbolt 5 systems with discrete GPU typically support three displays
  (Some systems with additional Thunderbolt ports may support only two displays). View Displays Compatibility PDF for details
• Chromebook Compatibility:
  Chromebooks with Thunderbolt 5 ports
  Chromebooks with Thunderbolt 4 ports
  Chromebooks with USB4 ports
  Current ChromeOS
• iPad Pro Compatibility:
  M-series iPad Pro models
  M1/M2 iPad Pro supports one mirrored monitor
  M4/M5 iPad Pro supports one extended or mirrored monitor
  Current iPadOS
• HDR Compatibility:
  Mac HDR support dependent on Apple compatibility
  Windows HDR support dependent on Microsoft system compatibility
• Displays Compatibility: For computers and displays, compatibility information, see the following PDF
• NVMe SSD Compatibility:
  Supports compatible NVMe SSDs
  See manufacturer compatibility documentation for supported models - PDF

Technical Notes:
1. M3 base model laptops support two external displays in closed clamshell mode.
2. To check CPU Generation go to:
Settings → System → About
Examples:
Intel® Core™ 14xxx x.xxGHz = 14th Gen
Intel® Core™ Ultra x 2xx x.xxGHz = Core Ultra 2
3. Some Core Ultra 1 and Core Ultra 2 systems may limit 4TB and 8TB SSD speeds to approximately 800 MB/s. Full performance is expected with 1TB and 2TB SSD models.
4. Charging rate varies according to overall power usage. When sleeping, connected computers supporting Thunderbolt charging will charge to 100% through the dock.
5. Thunderbolt compatible adapter required (sold separately).
6. 2.5GbE and 5GbE speeds are supported when connected to NBASE-T compatible multi-Gigabit switches and NAS systems.

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