Sonnet Echo 21 Thunderbolt 5 SuperDock

About: Sonnet Echo 21 Thunderbolt 5 SuperDock

Presenting the Echo 21 Thunderbolt 5 SuperDock — our most powerful and expandable dock ever — featuring superfast SSD internal storage capability and built-in 10GbE networking. Transform a single cable connection from your computer into two Thunderbolt 5 peripheral ports, one NVMe SSD slot, one 10Gb Ethernet port, nine 10 Gbps USB ports, two video output ports, and more! With 80 Gbps of bi-directional data speed — twice as fast as Thunderbolt 4 — and 120 Gbps for higher display bandwidth, you'll revolutionize your productivity.

• Thunderbolt 5 Interface - 80 Gbps bi-directional data speed; 120 Gbps display bandwidth
• Connect Thunderbolt Devices - Attach two Thunderbolt 5, 4, or 3 peripherals
• SSD Storage - Install an M.2 NVMe SSD; add 8TB of 3300 MB/s storage!
• 10Gb Ethernet - Link to an Ethernet network or NAS at 10 Gigabit speed!
• 140W Power Delivery - Connect and charge your laptop with up to 140W Power Delivery
• Direct HDMI & DP Display Support - Connect an HDMI display or DP display directly to the dock; no adapters required
• 4K, 5K, 6K, 8K Support - Depending on your computer, supports up to four 4K, 5K, or 6K or two 8K* displays
• USB 3 - Plug in as many as 11 USB 3 devices via USB and Thunderbolt ports
• Device Charging - Charge your phone
• Headset - Plug in your headset (or headphones and a microphone) for high-quality audio
• Powered Speakers - Connect powered speakers for rich, high-quality lossless audio
• SD Cards - Read your SD and microSD cards

Connect Your Peripherals and Power Your Laptop with One Thunderbolt 5 Cable

Echo 21 Thunderbolt 5 SuperDock links connected Thunderbolt devices, monitor(s), USB peripherals, powered speakers, and Ethernet cable to your computer with a single Thunderbolt 5 cable. Got a laptop? Keep its power adapter in your bag — the SuperDock will power it with 140W of charging power. When it’s time to leave, just unplug the Thunderbolt cable, grab your computer, and go.

Internal SSD Expansion Slot

Add up to 8TB of high-speed SSD storage (SSD sold separately) directly inside the dock —no external storage device required. Installation is simple: remove the bottom panel, insert the SSD, and secure the cover. Once installed, access and transfer data at up to 3300 MB/s. Ideal for pro content creation, application storage, large media libraries, and Time Machine backups.

• Which SSDs are recommended? Click Here to view the NVMe SSD Compatibility PDF for SSDs tested for compatibility and recommended for maximum performance.

Onboard HDMI and DP Display Support

Echo 21 Thunderbolt 5 SuperDock features video output ports for HDMI and DisplayPort displays, enabling you to connect either an up to 8K* @60Hz HDMI monitor or a 4K @144Hz DisplayPort monitor.

Blazing-fast 10GBASE-T Access

Echo 21 Thunderbolt 5 SuperDock supports demanding workflows with built-in 10 Gigabit Ethernet, enabling connection to 10GbE infrastructure using cost-effective Cat 6 or Cat 6A copper cabling (up to 55 or 100 meters, respectively) — eliminating the need for a separate adapter.

Delivering up to 10x the performance of Gigabit Ethernet, the dock also supports 5 Gbps, 2.5 Gbps, 1 Gbps, and 100 Mbps link speeds when connected to switches or NAS devices without 10GbE support, using standard Cat 5e (or better) cabling.

• AVB Support: Audio Video Bridging (IEEE 802.1Qav, AVB) support for macOS makes this dock ideal for use in pro audio and video applications where synchronization of data streams is critical.

High Resolution Audio Support

Echo 20 Thunderbolt 5 SecureDock features a hi-res Audio Codec (coder-decoder) that supports the dock’s audio I/O jacks with high quality, lossless audio. And, with the SecureDock’s fanless, silent design, you’ll hear every detail.

• Headset Microphone
  • 24-bit/48 kHz and 24-bit/96 kHz sample rates
    • Ideal for meetings, calls, and chat headsets, and supports professional microphones.
• Headset Earphones
  • 24-bit/44.1 kHz
    • Ideal for CDs and music libraries, avoiding resampling of 44.1 kHz audio content.
  • 24-bit/48 kHz
    • Great choice for streaming video and meetings. Supports Apple Lossless Audio Codec (ALAC) playback.
  • 24-bit/96 kHz
    • Fantastic choice for audiophiles; supports Hi-Res Apple Lossless playback.
  • 24-bit/192 kHz
    • Ideal when maximum detail is required; supports high-resolution Apple Lossless playback, preserving the full fidelity and dynamic range of studio-quality audio recordings.
• Dedicated Mic Jack
  • 24-bit/96 kHz sample rate
    • Connect a dedicated microphone for clear voice input during meetings, calls, streaming, and voice recording.
• Stereo RCA Jacks
  • 24-bit/96 kHz sample rate
    • Provide consistent line-level audio output, ideal for connecting powered speakers or directly to a receiver, power amplifier, or mixer. Also excellent for self-powered studio monitors and other professional audio equipment. Supports Hi-Res Apple Lossless playback.

Dual Downstream Thunderbolt 5 Ports for Simple, Powerful Connectivity

Echo 21 Thunderbolt 5 SuperDock incorporates three Thunderbolt 5 ports. One connects to and powers your computer — ideal for laptops with only one or two Thunderbolt ports, since it handles charging and data through a single connection. The other two support Thunderbolt 5, 4, and 3 devices — as well as USB4 and USB 3 peripherals — and each provides 15W for demanding bus-powered devices. If supported by your computer, you can also connect one, two, or even three additional displays.

Powerful 10 Gbps USB-A and USB-C Ports

Echo 21 Thunderbolt 5 SuperDock delivers powerful USB 3 connectivity with four 10 Gbps USB-A ports, and five 10 Gbps USB-C charging ports — including two on the front, two on the back, and a front 15W USB-C charging port. All ports support super-fast 10 Gbps USB NVMe SSDs at full speed.

Echo 21 doesn’t skimp on power either — each port provides 7.5W (or 15W) to ensure that drives with higher peak power requirements mount and operate reliably. An added benefit of the USB-C ports is they support device charging even when the computer is off, asleep, or disconnected.

More Pixels: Drive 4K, 5K, 6K, and up to 8K Displays via Thunderbolt

Depending on your computer’s graphics capability and whether a DisplayPort or HDMI monitor is connected to one of the dock’s built-in display outputs, the Echo dock’s Thunderbolt ports can support as many as three displays — at 4K, 5K, or 6K resolution, and up to 8K*.

Connect Thunderbolt 5, 4, 3, or USB-C monitors directly, or use a Thunderbolt-compatible adapter (sold separately) to connect HDMI, DisplayPort, and other display types.

• How many displays does your computer support? Click Here to view the Display Compatibility PDF to see how many displays you can use.

Charge It Up – Leave the Power Adapter In Your Backpack

Connected to your laptop computer with the included Thunderbolt 5 cable, Echo 21 Thunderbolt 5 SuperDock provides up to 140W of power (Power Delivery), enabling it to power and charge your computer while connected, even when not in use, allowing you to leave your computer’s charger packed away.

Media Readers – Fast UHS-II SD and microSD 4.0 Card Readers

The included SD and microSD card slots are compatible with SD, SDHC, and SDXC; and microSD, microSDHC, and microSDXC memory cards, respectively, and support 320 MB/s read speeds with UHS-II SDXC and microSDXC cards to quickly offload images and video files.

Security

• Connect It Securely: Thunderbolt 5 Cable and ThunderLok Included: The included Thunderbolt cable delivers Thunderbolt 5’s full bandwidth and power delivery performance, and is compatible with Thunderbolt 5, 4, and 3, and USB4 computers. A provided ThunderLok connector lock helps prevent accidental disconnections from the SecureDock.
• Physical Security: Kensington Lock Ready: With up to 8TB of valuable data inside, you can secure the Echo dock with a Kensington Lock (sold separately). The dock is compatible with Standard, MicroSaver, and MicroSaver 2 locks.

Key Features

• One Cable Peripheral Connection – Instant access: plug all your peripherals into the Echo dock and connect your computer to the dock with the included Thunderbolt 5 cable.
• Twenty-One Interfaces – SuperDock includes three Thunderbolt 5; four 10 Gbps USB-A, and five 10 Gbps USB-C charging ports; video output ports for HDMI and DP displays; RJ45 10 Gigabit Ethernet; 3.5 mm combo audio; 3.5 mm microphone; line-level R+L RCA audio out; fast UHS-II SD and microSD card slots; and an M.2 SSD slot.
• Two Thunderbolt 5 Ports for Peripherals – Connect two Thunderbolt peripherals (with support for daisy chaining additional peripherals). Also support USB4 and USB 3 devices, plus displays.
• M.2 NVMe SSD Slot – Add up to 8TB of internal storage (SSD sold separately) with up to 3300 MB/s performance — perfect for content creation, media libraries, and backups.
• 10Gb Ethernet Port – Link to an Ethernet network or NAS at 10 Gigabit speed! Also supports 5Gb, 2.5Gb, and 1Gb Ethernet link speeds.
• 10 Gbps USB-C Port (with 15W Charging) –  USB-C port provides 15W of power for operation or charging. Port supports super-fast 10 Gbps USB NVMe SSDs at full speed.
• 10 Gbps USB-C Ports (with 7.5W Charging) – Four USB-C ports provide 7.5W of power each for operation or charging. Ports support 10 Gbps USB NVMe SSDs at full speed.
• 10 GBbps USB-A Ports (7.5W) – Four USB-A ports provide 7.5W of power each and support 10 Gbps USB NVMe SSDs at full speed.
• Video Output (HDMI) Port – Connect a 1080p, 1440p, 4K, 5K, 6K, or 8K HDMI display directly, no adapter required.
• Video Output (DisplayPort) Port – Connect a 1080p, 1440p, or 4K display directly, no adapter required.
• Connect One, Two, or Three Displays via Thunderbolt – Depending on your computer, connect one or two Thunderbolt or USB-C displays directly, and daisy chain a third. Supports HDMI and DP displays with Thunderbolt-compatible adapters (sold separately).
• Supports 1080p, 1440p, 4K, 5K, 6K, and 8K Displays @ up to 500Hz – Depending on your computer, supports up to two 8K displays, or three or four 4K, 5K, or 6K displays (see official product page Tech Specs for details).
• Charge Your Laptop – Provides 140W through the included Thunderbolt 5 cable to power and charge your laptop.
• Hi-res Audio I/O Support – 3.5mm stereo headset jack on the front panel. Separate left/right channel RCA line out jacks that deliver a clean signal to powered speakers or an amplifier, plus a 3.5mm microphone jack populate the back panel.
• Fast UHS-II SD and microSD Card Slots – Compatible with SD, SDHC, SDXC; and microSD, microSDHC, and microSDXC memory cards; supports 320 MB/s read speeds with UHS-II cards.
• Compatibility – Compatible with all M series Macs, and Intel Macs with Thunderbolt 3 ports; Windows computers with Thunderbolt 5 or 4, or USB4 ports; Chromebook computers with Thunderbolt 5 or 4, or USB4 ports; and M series iPad Pro tablets. 
• Warranty – 2-year product warranty.
• Customer Support – Lifetime technical support.
• The Sonnet Advantage – Innovating technology since 1986.

Specifications

• Compatibility
  • Displays Compatibility: Click Here for computers and displays compatibility information
  • ​Mac Compatibility
    • macOS 15+
    • macOS Tahoe compatible
    • 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 that support maxOS 15+
      • Three Displays
        • M4 Max models
        • M5 Pro and Max models
      • Four Displays
        • M5 Max models (requires daisy chain connection of one display)
  • Windows Compatibility
    • Windows 11 (24H2, or newer, with latest update)
    • Intel CPU Generation Support
      • 11th Gen (Not Compatible)
      • 12th Gen (Compatible)
      • 13th Gen (Compatible)
      • 14th Gen (Compatible)
      • Core Ultra 1 (Compatible)
      • Core Ultra 2 (Compatible)
    • AMD Support
      • AMD computer with USB4 port should be compatible
      • Typically supports one display (but may be none or two)
    • Display Compatibility
      • Intel Windows Computer Display Support Through One Thunderbolt Port
    • Two Displays
      • Compatible computer with Thunderbolt 5 port(s) and integrated graphics supports two displays
      • Compatible computer withThunderbolt 4 port(s) supports two displays
    • Three Displays
      • Compatible computer with Thunderbolt 5 port and a discrete GPU typically supports three displays (may support only two displays if the computer has a second Thunderbolt port)
  • Chromebook Compatibility
    • Chromebook with Thunderbolt 5 or 4 ports
    • Chromebook with USB4 ports
    • Current ChromeOS
  • iPad Pro Compatibility
    • M series iPad Pro
    • M1/M2 iPad Pro supports one mirrored monitor
    • M4/M5 iPad Pro supports one extended or mirrored monitor
    • Current iPadOS
  • HDR Compatibility
    • See Apple Support Note for Mac HDR information
    • If your Windows computer supports HDR, see this Microsoft Support Note for Windows HDR information
• Hardware
  • Warranty: 2-year
  • Form Factor
    • Thunderbolt dock
    • Anodized extruded 6063 aluminum alloy
  • Connectors
    • Three Thunderbolt 5 ports
    • M.2 SSD slot
    • RJ45 10 Gigabit Ethernet port
    • Video Output (HDMI) port
    • Video Output (DP) port
    • 15W USB-C charging port (10 Gbps USB 3.2 Gen 2)
    • Four 7.5W USB-C charging ports (10 Gbps USB 3.2 Gen 2)
    • Four USB-A ports (10 Gbps USB 3.2 Gen 2)
    • Two (right and left channels) line out RCA jacks
    • 3.5 mm combination headphone/microphone jack
    • 3.5 mm microphone jack
    • UHS-II SD card slot
    • UHS-II microSD card slot
    • Power connector
  • Thunderbolt 5 Computer Port
    • Power Delivery: Provides laptop charging up to 140W
    • Cables Supported: Any Thunderbolt 5 cable (0.8-meter included)
  • Thunderbolt 5 Peripherals Ports
    • Note that the downstream ports are not necessarily Thunderbolt 5 ports; they are the same as the host ports (Thunderbolt 5, Thunderbolt 4, or USB4).
    • Connectivity: With USB-C connector
    • Peripherals Supported
      • Thunderbolt 5 devices
      • Thunderbolt 4 devices
      • Thunderbolt 3 devices
      • USB4 v2 devices
      • USB4 devices
      • USB hubs
      • Thunderbolt 5, 4, 3, and USB-C monitors
      • DisplayPort and HDMI monitors (adapter required, sold separately)
  • Video Output (HDMI) Port
    • Windows: HDMI 2.1 up to 8K 60Hz
    • macOS: HDMI 2.0b up to 4K 60Hz
  • Video Output (DP) Port: DP 2.0 up to 4K 144Hz
  • USB 3.2 Gen 2 Type A Ports
    • Connectivity: With USB Type A connector
    • Peripherals Supported: USB 3, 2.0 and 1.1 devices
    • Data Transfer Rate: USB 3.2 Gen 2: 10 Gbps
  • USB 3.2 Gen 2 Type-C Ports
    • Connectivity: With USB Type-C connector
    • Peripherals Supported: USB 3, 2.0 and 1.1 devices
    • Data Transfer Rate: USB 3.2 Gen 2 (previously USB 3.1 Gen 2): 10 Gbps
    • Charging
      • 1.5A per port advertised using USB Type-C Charging; 3A for front panel port marked with 15W
      • 7.5W per port for operation or charging; 15W for front panel port marked with 15W
      • Supports simultaneous charging and syncing
  • RJ45 (Ethernet) Port
    • Network Support
      • 10GBASE-T (100 meters using Cat 6A cabling; 55 meters using Cat 6 cabling)
      • 5GBASE-T, 2.5GBASE-T, 1000BASE-T, 100BASE-TX (100 meters using Cat 5e [or better] cabling)
    • Standard: Compliant with 802.3bz-2016 and 10/100/1000 IEEE 802.2 Specifications
    • Packets: Maximum packet size: 16352 bytes (jumbo frames); 9000 bytes under macOS
    • Data Rates Supported: 10 Gbps, 5 GBps, 2.5 Gbps, 1 Gbps
    • AVB (Audio/Video Bridging) Support: macOS only
    • Chip: Marvell AQC113C
    • Advanced Features
      • Flow control support
      • MSI (Message Signaled Interrupts)
      • RSS (Receive-Side Scaling)
      • Interrupt coalescing
      • Multicast filtering
      • Energy-Efficient Ethernet (IEEE 802.3az)
      • 64-bit address support for systems using more than 4GB of physical memory
    • Stateless Offloads
      • TCP, UDP and IPv4 checksum offloading
      • TSO (TCP Segmentation Offload, AKA Large Send Offload)
      • LRO (Large Receive Offload)
      • RSS (Receiver Side Scaling)
  • SD Card Slot: Fast UHS-II SD Card Reader
    • Cards Supported: SD, SDHC, SDXC
  • microSD Card Slot: Fast UHS-II SD microSD Card Reader
    • Cards Supported: microSD, microSDHC, and microSDXC cards
  • Audio Line Out: RCA R+L connectors
  • Headset Jack: 3.5 mm (1.8-inch) TRRS
  • Internal Slot: NVMe M.2 slot (connected at PCIe 4.0 x2)
  • Power Delivery: Provides laptop charging up to 140W
  • Kensington Security Slot: Supports Standard, MicroSaver, and MicroSaver 2 Locks
  • Power Adapter: Universal 240W, 100-240V AC, 50-60 Hz
  • Operating Temperatures: 0˚C to 35˚C (32˚F to 95˚F)
  • Compliance
    • RoHS 3 (Directive 2015/863)
    • IEC62368-1 and IEC62368-2 Safety
    • VCCI-B certified
    • FCC Part 15, Subpart B
    • CISPR 32/EN 55032
    • Power Supply (PSE certified; UL certified)
  • Dimensions (WxDxH)
    • Dock: 9.6 x 4.2 x 1.3 in. (24.3 x 10.6 x 3.3 cm)
    • Power Adapter: 2.9 x 6.1 x 1 in. (7.5 x 15.5 x 2.5 cm)
  • Weight: 2.9 lbs (1.3 kg)

What's in the Box

• Echo 21 Thunderbolt 5 SuperDock
• Power adapter
• Region-specific power cord
• 0.8-meter Thunderbolt 5 cable
• ThunderLok-A connector lock
• Documentation