Sonnet xMac

Home Computer Hardware PCI-e Expanders Sonnet xMac mini Server Thunderbolt 3 Edition
xMac mini Server with one full-length and one half-length slot Thunderbolt 3 Edition
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Expand & Secure Your Mac Pro

Building on the concept of our award-winning xMac mini Server for Mac® mini, we designed an expansion system that safely encloses the latest Mac Pro® into a tightly integrated 16" deep rackmount enclosure, incorporates PCIe card expansion with three PCIe 2.0 slots and 20Gbps Thunderbolt™ 2 technology, and provides the capability to add peripherals with optional Mobile Rack Device Mounting Kits.

The new Mac Pro is an object of desire, but a lustrous finish hides its true beauty within—massive power. If you’re a pro user in the video or audio industries, the Mac Pro offers the power you need, but lacks the built-in expandability you count on. In order to achieve this engineering feat, Apple® designers stripped away components and space to a minimum, taking out PCIe slots and drive bays, and packed the remaining components into a small cylinder. Its compact size makes the new Mac Pro more transportable and rackable, but prevents onboard installation of PCIe expansion cards. In addition, the computer still requires an enclosure to make it road- or rack-ready and provide convenient cable management.


Sonnet’s xMac™ Pro Server PCIe 2.0 expansion system/4U rackmount enclosure addresses these issues and increases a Mac Pro’s potential in a big way. With amazing expansion capabilities, an easy to maintain modular design, and support for a wide range of popular mobile racks, carts and portable rack cases, xMac Pro Server is the perfect solution for expanding the power of your Mac Pro.

Rear Panel Mount Cables

Panel-mount cables (HDMI, two Gigabit Ethernet, three USB 3.0, one 3.5 mm audio [out or in], and power) connect the ports on the back of each Mac Pro to ports on the back each Computer Mounting Module for convenient external connection.


New Faceplate & Thumbscrew Design

Because of the active electronics contained in each end of a Thunderbolt cable, panel-mount connectors for Thunderbolt cables do not exist; Thunderbolt cables must be connected directly to the computer. Sonnet has updated the xMac Pro Server to make that task, and accessing PCIe cards, easier. Screws on the back of the enclosure have been replaced with captive thumbscrews, and the faceplate has been split in two (with each faceplate remaining attached to its module), enabling you to secure, release, and slide out each module without the need of tools.


Main Key Features


Provides PCIe Card Expansion for Mac Pro—Use high-performance PCIe cards with the latest Mac Pro


Makes Your Mac Pro Road-Ready—4U rackmount enclosure securely holds the computer and PCIe cards in place, adding mobility to your Mac


Three PCIe Slots—Supports three full-length, full-height, single-width cards, or one double-width card plus one single-width card


Thunderbolt 2 Interface—Maximum performance with Mac Pro; backward compatible with devices equipped with 10Gbps Thunderbolt technology


Improved Design—New captive thumbscrews and two faceplates enable easier computer and PCIe card installation, and simpler cable access


Power for High Performance PCIe Cards—Integrated 300W power supply provides plenty of power for any cards you install; 75W auxiliary PCIe power connector enables use of power hungry cards such as the Avid Pro Tools|HDX or the RED ROCKET-X


Provides Space for Additional Devices—Using optional Mobile Rack Device Mounting Kits, you can install HDDs, SSDs, a tape or optical drive, and more inside xMac Pro Server's enclosure


Expand Your xMac Pro Server Further with Mobile Rack Device Mounting Kits

Sonnet's Mobile Rack Device Mounting Kits enable you to add more expansion devices to your rack without taking up additional rack space. The Mobile Rack Device Mounting Kit includes an internal 100W power supply inside to power the installed devices, a large internal fan to quietly and efficiently cool the expansion kit, and mounting hardware to secure the devices and the kit itself. Preconfigured kits include the mobile rack peripherals, PCIe card, and necessary cables; you provide drives as necessary.

Simpler Mac Pro Rackmount Solution


If you like the idea and design of the xMac Pro Server, but don’t need the expansion capabilities it offers for your Mac Pro, consider Sonnet’s RackMac™ Pro rackmount enclosure for one or two Mac Pro computers. This 4U enclosure includes one or two Computer Mounting Modules (the same included with the xMac Pro) to secure the computers, and supports the installation of one Twin 10G Dual-Port 10 Gigabit Ethernet Thunderbolt 2 Adapter per computer. If you change your mind later about Thunderbolt-to-PCIe card expansion, you can add one or two Sonnet Echo Express III-R chassis to your setup.


Warranty             2-year

Dimensions (WxDxH)      

19 x 16 x 7 in. (48.3 x 40.6 x 17.8 cm)


Rack Depths Supported  

16 to 26 in. standard

22.5 to 32.5 in. with optional Extension Rails


32.5 lbs (14.7 kg)  


Rack Depths Supported  

16 to 26 in. standard

22.5 to 32.5 in. with optional Extension Rails

External Connectors       

Two RJ-45 Gigabit Ethernet port extensions

Four USB 3.0 port extensions (one front-mounted, and threerear-mounted)

One HDMI port extension

One 3.5 mm audio (in or out) extension

One C-13 power port extension

Internal Connectors        

One 6-pin Mini-Fit Jr (same type as on legacy Mac Promotherboard; provides up to 75W of power for PCIe cards that requiresupplemental power)

One C-13 power

PCIe Expansion Slots        Topto Bottom

One x8 mechanical (x4 electrical) PCIe 2.0

One x16 mechanical (x8 electrical) PCIe 2.0

One x8 mechanical (x8 electrical) PCIe 2.0

PCIe Cards Supported(1)

Three full-length PCIe cards, or

One full-length, double-width PCIe card, plus onesingle-width card

Compatible PCIe Cards(2)              Up-to-datePCIe cards listed on our supporting PCIe Card Thunderbolt Compatibility Chart

Power Supply     

Universal 300W, 115-230V AC, 50-60 Hz


Operating Temperature 

0 C to 35 C (32 F to 95 F)


RoHS Compliant Yes

Package Contents


xMac Pro Server (includes PCIe card expansion module;computer mounting module with one HDMI, one 3.5 mm audio (in or out), onepower, two Gigabit Ethernet, and four USB 3.0 pass-through cables; assembled)

Thunderbolt cable

ThunderLok Thunderbolt connector retainer clip(3)

Locking HDMI cable

Power cord

5/64-inch hex wrench


Notes: Mac Pro, PCIe cards, Mobile Rack Device MountingKits, and Twin 10G sold separately. Mac Pro Wi-Fi and Bluetooth antennashielded from effective use upon installation.

  • xMac Pro Server, assembled
  • 1-meter Thunderbolt cable
  • Thunderbolt cable lock(3)
  • Two power cords
  • Documentation
  • Note: Mac Pro, PCIe cards, and Mobile Rack Device Mounting Kits sold separately



Mac Pro (Late 2013)


OS X 10.9.5+


macOS Catalina compatible


PCIe Card Compatibility


For up-to-date PCIe card compatibility see our PCIe CardThunderbolt Compatibility Chart


For maximum PCIe bandwidth, dedicate one Thunderbolt 2 busto the PCIe expansion slots.

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