• Overview
  • Tech Specs
  • Accessories
  • Videos


MacBook Pro with Thunderbolt Cable and Peripherals


Connect to Your Peripherals
with a Single Cable

Sonnet's Echo 15+ Thunderbolt 2 Dock enables you to connect any Mac® with a Thunderbolt port to your peripherals through a single Thunderbolt cable (sold separately), an especially handy ability for notebook users. Simply plug in your printer, keyboard, mouse, cable modem, external hard drive, display, headphones, speakers, microphone, and iPad®, iPhone®, or iPod®, and other devices to the Echo dock with their supplied cables, and connect your computer to the dock with a Thunderbolt cable. When it's time to disconnect your computer, just unplug the Thunderbolt cable! The Echo 15+ gives you plenty of interfaces to choose from, including USB 3.0, eSATA, FireWire® 800, Gigabit Ethernet, 3.5 mm audio input, 3.5 mm audio output, and Thunderbolt.

Hand Holiding Optical DiscYour Choice of Optical Drive, or Without

If you've purchased an iMac®, MacBook Air®, MacBook Pro® with Retina® Display, or Mac Pro recently, you may have noticed something's missing—there’s no optical drive. Not to worry, the Echo 15+ Thunderbolt 2 Dock has you covered—it includes your choice of DVD±RW drive, Blu-ray Disc™ player (BD-ROM/8x DVD±RW), or Blu-Ray burner (4x BD-R/8x DVD±RW) optical drive. For those who want to install their own (or gain the ability to install an additional 2.5" drive), there is also an Echo 15+ model available without optical drive.(1)

When you purchase the the Blu-ray Disc player model, you'll find the included Blu-ray player software for OS X® is very handy, enabling you to watch Blu-ray movies on your computer or attached monitor.

Echo 15+ Connected to iMac


Rugged Aluminum Design Measuring 8.25 inches wide by 8.89 inches HighRugged Aluminum Design, Multiple Ports

Sonnet designed the Echo 15+ Thunderbolt 2 Dock for maximum flexibility in use. The rugged aluminum case is engineered to effectively dissipate heat and is more than sturdy enough to support the latest Mac Pro, a 27" iMac computer, or a large format display up to 34".

For your convenience, USB 3.0, audio input, and audio output ports are placed on both the front and back of the enclosure, so you can leave frequently used devices connected to the back ports, and connect devices you disconnect more often to the front ports.

The headphone jack on the front supports a mini TOSLINK optical digital audio cable, enabling you to pass stereo digital audio out to your A/V system. Dual Thunderbolt 2 ports enable the Echo 15+ Thunderbolt 2 Dock to support daisy chaining of Thunderbolt peripherals. You can even connect a 4K Display, or other monitor type with an appropriate adapter, so you're not limited to a single type of display interface.

Test Optical Drive
Choose between DVD burner,
Blu-ray player, or Blu-ray burner, or no optical drive options(1)
Test Four USB 3.0 Ports
Connect and quick-charge devices such as iPads
Test Gigabit Ethernet Port
Connect a wired router, switch, or modem
Test Drive Bay
Install a 3.5" hard drive, or two 2.5" SSDs or hard drives; model without optical drive supports additonal 2.5" drive
Test FireWire 800 Port
Connect FireWire storage devices and other peripherals
Test Audio Ports
Easily connect headphones or digital audio device, and a microphone
Test Two Thunderbolt 2 Ports
Connect your computer to one port; daisy chain other Thunderbolt peripherals, or connect an external display to the other
Test Two 6Gb/s eSATA Ports
Connect single- and multi-drive storage systems, and media card readers with eSATA interfaces
Test Audio In and Speaker Ports
Connect a line-level input and speakers

Can Support a New Mac Pro, 27" All-in-One Computer, or Even a 34" Display

Hard Drive and SSDs

Storage Space for a Time Machine® (Drive) or High-Performance SSDs

Sonnet designed the Echo 15+ Thunderbolt 2 Dock with extra space, mounting hardware, and connectors for you to install one 3.5" SATA hard drive, or two 2.5" drives, either SSDs (solid state drives) or hard drives. Dual independent 6Gb/s SATA interfaces deliver maximum performance to support a pair of SSDs at up to 750 MB/s, or an HDD at its maximum speeds. Add a high-capacity drive to use as your Mac's Time Machine drive, to back up your computer's data, or to store your ever-growing media library. You can also boot your Mac from a drive installed in the Echo 15+ dock, enabling you to make repairs to or recover important data from a problematic drive in your computer. Optionally, you can install a pair of high-performance SSDs for blazing-fast access to applications and files, or a pair of 2.5" hard drives mirrored for redundancy.

Need Even More Storage Space?

Choose the Echo dock without optical drive (part number ECHO-DK-0TB)—in place of the optical drive you can add an additional 2.5" drive, enabling you to install one fast 2.5" inch drive plus one high-capacity 3.5" drive, or three 2.5" drives total! Whichever choice you make, you can expand your storage inside the Echo dock without the fuss of adding more external drive enclosures, more power bricks, and more cable clutter.

Echo 15+ Thunderbolt 2 Dock Videos

Key Features

Connects Your Peripherals with One Cable—Connect your peripherals to the Echo dock; connect your computer to and disconnect it from the dock using one Thunderbolt cable (sold separately)

Provides Multiple Interfaces and Thunderbolt 2 Compatibility—Thunderbolt 2 (backward compatible with 10Gbs Thunderbolt), USB 3.0, SATA and eSATA, FireWire 800, Gigabit Ethernet, and audio

Optical Drive Options—Choose between an 8x DVD±RW drive, a Blu-ray disc player (BD-ROM/8x DVD±RW drive), or Blu-Ray burner (4x BD-R/8x DVD±RW drive), or add your own(1)

Adds Blu-ray Movie Play Support for OS X—When purchased with the Blu-ray player option, OS X Blu-ray player software is included

Supports Internal Hard Drive or SSD Installation—Install one 3.5" hard drive or two 6Gb/s 2.5" SSDs or hard drives; model without optical drive supports additional 2.5" drive

iOS Device Charger—USB 3.0 ports can charge your iPad, iPhone, or iPod, even while the computer is disconnected, off, or sleeping; all four ports provide 7.5W, optimized for quick charging

Wide Range of Display Connection Options—Select from a variety of inexpensive Mini DisplayPort to popular display interfaces such as HDMI, DVI, VGA and Dual-Link DVI

Compatible with Every Thunderbolt Mac—Supports any Mac with a Thunderbolt port running OS X 10.9.5+


Charging iPhone and iPad

iPhone and iPad Charging Hub

With its four powered USB 3.0 ports, the Echo 15+ Thunderbolt 2 Dock will be the hub for charging devices, too. Each port can charge your iPad, iPhone, or iPod, even when your computer is disconnected, off, or sleeping.

USB 3.0 CableAdvanced USB 3.0 Feature Support

The Echo dock’s USB 3.0 ports support UASP (USB Attached SCSI Protocol) and Wake On Demand (Wake On USB 3.0). UASP support ensures that UASP-enabled external drives connected to the dock achieve their maximum data transfer rate potential, with performance improved by up to 20% above the drive connected to a USB host without UASP support. Wake on demand support allows devices such as a keyboard connected to the Echo dock's USB 3.0 ports to wake your computer.

Connect a Display

The Thunderbolt port on your Mac is essentially a Mini DisplayPort video connection that adds high speed PCIe for data. This means that there is a broad range of inexpensive adapters (sold separately) that can bridge between Mini DisplayPort and common display interface types. Connecting a 4K display via a mini DisplayPort to HDMI adapter even supports 4K@60Hz operation! You can connect the display directly to the second Thunderbolt port or as the last device in the Thunderbolt chain.

Echo 15+ Connected to 4K Display

Display interface types that can be connected to your Echo 15+ Thunderbolt 2 Dock via Thunderbolt include:

• Thunderbolt Display – Direct Connect
• Mini DisplayPort – Direct Connect
• HDMI – Mini DisplayPort to HDMI Adapter
• Dual-Link DVI – Mini DisplayPort to Dual-Link DVI Adapter
• DVI – Mini DisplayPort to DVI Adapter
• VGA – Mini DisplayPort to VGA Adapter

Thunderbolt Display Adapters

Front of Echo 15+Rear of Echo 15+



Thunderbolt Cable and ThunderLokThunderLok™-Ready

The Echo dock supports the ThunderLok Thunderbolt connector retainer clip. The ThunderLok (sold separately) slides over a standard copper Thunderbolt cable (sold separately) and screws into the back of the Echo dock to prevent accidental disconnects. When not in use, the ThunderLok remains on the cable so it won’t get lost.

Learn More About ThunderLokArrow


Sonnet Optical Thunderbolt Cables BadgeGet Full Thunderbolt Performance, At a Distance

There are situations where placing a computer somewhere other than the workspace is called for, such as securing equipment inside a centralized machine room. Mount a Mac® mini in a Sonnet xMac™ mini Server Thunderbolt 2-to-PCIe expansion system or RackMac™ mini rackmount enclosure, or a Mac Pro® in an xMac Pro Server Thunderbolt 2-to-PCIe expansion system or RackMac Pro rackmount enclosure, and then install it into an equipment rack. Set up a monitor, keyboard, and mouse at the user’s desktop or workstation, plug in the gear to the Echo 15+ Thunderbolt 2 dock, and then add the missing link—an optical Thunderbolt cable. Available in lengths up to 60 meters, you can give the user access to the power without the computer nearby.



See Tech Specs Tab for footnotes

*Requires Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter; macOS 10.12.1+ required for compatibility
Computer hardware, Thunderbolt cables, and ThunderLok shown in photos for illustration purposes; items sold separately

Mac Compatibility

Mac® with a Thunderbolt or Thunderbolt 2 port

MacBook Pro with Thunderbolt 3 port*

OS X® 10.9.5+

macOS Mojave compatible

Part No.  
ECHO-DK-0TB Discontinued; Echo 15+ Thunderbolt 2 Dock (without Optical Drive)
ECHO-DK-DVD-0TB Discontinued; Echo 15+ Thunderbolt 2 Dock (with DVD±RW Drive)
ECHO-DK-BD-0TB Discontinued; Echo 15+ Thunderbolt 2 Dock (with Blu-ray Player)
ECHO-DK-PRO-0TB Discontinued; Echo 15+ Thunderbolt 2 Dock (with Blu-ray Burner)
Warranty 1-year
Form Factor Thunderbolt 2 dock
External Connectors
  • Two eSATA
  • One FireWire 800
  • One RJ-45 (Gigabit Ethernet)
  • Two Thunderbolt 2
  • Four USB 3.0
  • Two 3.5 mm audio input
  • Two 3.5 mm audio output (front also optical)
  • Power
Internal Connectors
  • Two SATA power
  • Two 6Gb/s SATA data
  • One 3Gb/s SATA power/data (reserved for optical drive, or SATA drive tray in model without optical drive)
Power Adapter Universal 100W, 100-240V, 50-60 Hz
Operating Temperature 0º C to 35º C (32º F to 95º F)
Dimensions (WxDxH) 8.25 x 8.89 x 3.07 in. (21 x 22.1 x 7.73 cm)
RoHS Compliant Yes
Package Contents
  • Echo 15+ Thunderbolt 2 Dock
  • One power cord
  • One power adapter
  • Documentation
Internal DVD
(Part No. ECHO-DK-DVD-0TB)
DVD Drive 8x DVD±RW drive (Hitachi-LG GTB0N or GTC0N)
Boot Support        OS X from DVD
CD Support Read/Write
Internal Blu-ray Player
(Part No. ECHO-DK-BD-0TB)
Blu-ray Drive Blu-ray disc player (BD-ROM/8x DVD±RW drive) (Hitachi-LG CT30F)
Blu-ray Player Software(2) OS X movie player software included
Boot Support OS X from DVD
CD Support Read/Write
Internal Blu-ray Burner
(Part No. ECHO-DK-PRO-0TB)
Blu-ray Drive Blu-ray disc burner (Panasonic UJ-260)
Blu-ray Support
  • BD-R (25GB SL, 50GB DL) R/W 6x
  • BD-R XL (100GB TL, 128GB QL) R/W 4x
  • BD-RE (25GB SL, 50GB DL) R 6x (SL),
    R 4x (DL) / W 2x
  • BD-RE XL (100GB) R/W 2x
  • BD-ROM R 6x
DVD Support
  • DVD-RAM R/W 3-5x
  • DVD-R (SL, DL) R 8x / W 8x (SL), W 6x (DL)
  • DVD-RW R 8x / W 6x
  • DVD+R (SL, DL) R 8x / W 8x (SL), W 6x (DL)
  • DVD+RW R/W 8x
  • DVD ROM (SL, DL) R 8x
CD Support
  • CD-R R/W 24x
  • CD-RW R/W 24x
  • CD-ROM R 24x
Blu-ray Burning and Player Software(3) Sold separately
Boot Support OS X from DVD
Internal SATA
Drives Supported

One 3.5" hard drive, or two 2.5" 6Gb/s SSDs or hard drives (up to 9.5mm tall)

SATA Speed

Up to 6Gb/s

Data Transfer Speed

Up to 750 MB/s (two SSDs, RAID 0)

Boot Support OS X booting supported
Internal SATA
(Part No. ECHO-DK-0TB)
Drives Supported One 3.5" hard drive plus one 2.5" SSD or hard drive (up to 9.5mm tall), or three 2.5" SSDs or hard drives
SATA Speed Up to 6Gb/s (two connectors), up to 3Gb/s on third connector
Data Transfer Speed Up to 750 MB/s (two SSDs, RAID 0)
Boot Support OS X booting supported
Internal Storage Support
Storage User-installable 3.5" hard drive or two 2.5" SSDs or hard drives
Cables SATA power and data cables included
Internal Storage Support
(Part no. ECHO-DK-0TB)
Storage User-installable 3.5" hard drive or two 2.5" SSDs or hard drives
Cables SATA power and data cables included
External SATA (eSATA)
Devices Supported Any storage device with an eSATA interface
SATA Speed 6Gb/s
Data Transfer Rate Up to 375 MB/s per port
Boot Support OS X booting supported
Port Multiplier Support Yes
FireWire 800
Standard IEEE 1394b Compliant
Cables Supported 9-pin male FireWire 800 cables
Peripherals Supported Supports all industry standard FireWire 800 and FireWire 400(4) devices
Data Transfer Rate 800/400/200/100 Mb/s
Boot Support OS X booting supported
Number of Devices Supported Up to 63 (data only)
Hot Plug Supports hot-pluggable and hot-swappable device connections
Chipset LSI 643E





Gigabit Ethernet
Network Connector One RJ-45 connector supports 1000 Mb/s, 100 Mb/s, and 10 Mb/s network speeds and Auto-MDI/MDI-X
Standard Compliant with 10/100/1000 IEEE 802.2 Specification
Network Gigabit Ethernet (1000BaseT, 100BaseTX, 10BaseT)
Packets Maximum packet size: 9000 bytes (Jumbo packets)
Wake-on-LAN Supported
Netboot Supported
Thunderbolt 2(5)
Connectivity Thunderbolt 2 (backward compatible with 10 Gbs Thunderbolt)
Cables Supported
  1. Standard copper or optical Thunderbolt (20-pin) male cable
  2. Standard Mini DisplayPort (20-pin) male cable (for connecting display only)
Peripherals Supported Supports all industry standard Thunderbolt devices
Daisy Chain Up to six devices
Hot Plug Supports hot-pluggable device connection
USB 3.0
Ports Two in front plus two in rear
Cables Supported With standard male USB 3.0 A or USB 2.0 A connector
Peripherals Supported Supports all industry standard USB 3.0, 2.0 and 1.1 devices
Data Transfer Rate USB 3.0: 5 Gb/s
Number of Devices Supported Up to 30
Hot Plug

Supports hot-pluggable device connection

  • Four ports, each with 7.5W capacity to charge iPad, iPhone, iPod, or other USB battery charging 1.2–compliant device
  • Supports charging while sleeping or disconnected from computer
  • Supports simultaneous charging and synching
Video Support
Thunderbolt Display Native support
Mini DisplayPort Native support
HDMI With Mini DisplayPort to HDMI adapter (sold separately)(6)

With Mini DisplayPort to DVI adapter (sold separately)(7)

Dual-Link DVI

With Mini DisplayPort to Dual-Link DVI adapter (sold separately)(8)

VGA With Mini DisplayPort to VGA adapter (sold separately)(9)

Dependent on computer video controller specification

Audio Connectors
Microphone One 3.5 mm monaural analog microphone jack in front

One 3.5 mm stereo headphone jack in front; supports stereo optical digital audio out (mini TOSLINK cable required)

Line In One 3.5 mm stereo line level line in jack in rear

One 3.5 mm stereo speaker jack in rear for powered speakers

Priority Front I/O jacks have priority over rear I/O jacks
Front Panel Indicators
Power Power LED indicator
SATA Activity Activity LED indicator for internal and/or external SATA hard drive or SSD

Technical Notes

* Requires Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter; macOS 10.12.1+ required for compatibility.

  1. Echo 15+ without optical drive (part number ECHO-DK-0TB) includes a drive tray for an additional 2.5" drive. In order to install your own optical drive, this tray must be removed.
  2. OS X player software included.
  3. Blu-ray movie player and authoring software sold separately.
  4. FireWire 400 support through FireWire 800 ports requires Sonnet FireWire 400-to-800 adapter or adapter cable.
  5. Thunderbolt cable required; available at the Sonnet Online Store.
  6. Accel B086B-005B-2 Ultra Display Port 1.1 to HDMI 1.4 Adapter recommended.
  7. Kanex C30 recommended.
  8. Apple Mini DisplayPort to DVI Adapter recommended.
  9. Apple Mini DisplayPort to VGA Adapter recommended.

Specifications subject to change without notice.

Mac LogoThunderbolt LogoeSATA LogoFireWire logoUSB 3.0 LogoroHS Logo




Echo 15+ Accessories Part No. Description
Thunderbolt Cable ThunderLok Thunderbolt Connector Retainer Clip (2-Pack) TB-LOK2 Secures copper Thunderbolt cables with ThunderLok-compatible products
Thunderbolt Cable Thunderbolt Cable TCB-TB-05M 0.5-meter copper Thunderbolt cable
Thunderbolt Cable Thunderbolt Cable TCB-TB-1M 1-meter copper Thunderbolt cable
Power Adapter Power Adapter (12V, 10A) PWR-10A-12V Spare power adapter


Echo 15+ Thunderbolt 2 Product Overview (3:14 mins)

Echo 15+ with Echo Express III-R Case Study (5:02 mins)

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