Technical Specifications

Mac and Linux Logos


Mac Compatibility

  • Mac (Intel) with Thunderbolt 3 ports
    • macOS 10.15.7+
      • macOS Monterey compatible
      • External GPUs not supported on Thunderbolt 2 or Thunderbolt 1 Macs
      • Mac (M1) computers do not support eGPUs

      Windows Compatibility

      • Not certified for use under Windows; see tech note for information

      Monitor Compatibility

      • 4K@60Hz monitors using DP or HDMI ports
      • 4K, 5K, and 6K monitors @60Hz using Thunderbolt 3/USB-C port
      • 49” 5120x1440 Dual QHD monitors using DP port:
      • Dell Ultrasharp 49 Curved Monitor U4919DW
      • LG 49 inch 32:9 UltraWide Dual QHD IPS Curved LED Monitor 49WL95C-W
      • Philips Brilliance 32:9 Superwide Curved LCD Display 499P9H/27
      • Samsung 49” CRG9 Dual QHD Curved QLED Gaming Monitor LC49RG90SSNXZA


        Part Number

        • GPU-RX55-TB3-S (eGPU Breakaway Puck Radeon RX 5500 XT)
        • GPU-RX57-TB3-S (eGPU Breakaway Puck Radeon RX 5700)


        • 2-year

        Form Factor

        • Portable external GPU system

        Video Memory

        • Part number GPU-RX55-TB3-S
        • 4 GB GDDR6
        • Part number GPU-RX57-TB3-S
        • 8 GB GDDR6

        External Connectors

        • Two Thunderbolt
        • One DisplayPort
        • One HDMI
        • Two USB 3.2 Type A
        • One 4-pin power DIN

        Display Connectivity

        • Thunderbolt Port
        • 4K, 5K or 6K @60Hz Thunderbolt 3 monitor
        • 4K or 5K @60Hz USB-C monitor
        • 4K @60Hz DisplayPort monitor using USB-C to DisplayPort cable or adapter (not included)
        • Two 4K @60Hz DisplayPort monitors using Sonnet Thunderbolt Dual DisplayPort Adapter (sold separately)
        • Two 4k @60Hz HDMI monitors using Sonnet Thunderbolt Dual HDMI 2.0 Adapter (sold separately)
        • DisplayPort 1.4 Port
        • 4K @60Hz monitor
        • Dual QHD (5120x1440) @60Hz monitor
        • HDMI 2.0b Port
        • 4K @60Hz monitor

        USB Peripheral Connectivity

        • Cables Supported
        • With USB Type A connector
        • Peripherals Supported
        • Supports all industry standard USB 3, 2.0 and 1.1 devices
        • Data Transfer Rate
        • USB 3.2 Gen 1 (aka USB 3.1 Gen 1, USB 3.0): 5Gb/s

        Thunderbolt Peripheral Support

        • Yes

        Supported Technologies

        • HDCP 2.2
        • HDR (High Dynamic Range)
        • Intelligent Fan Control 
        • OpenCL 2.0
        • OpenGL 4.5
        • Metal

        Power Delivery

        • Provides laptop charging up to 60W

        Power Adapter

        • Universal 230W, 100-240V AC, 50-60 Hz

        Operating Temperatures

        • 0˚C to 35˚C (32˚F to 95˚F)

        Dimensions WxDxH (Puck)

        • 6 x 5.1 x 2 in. (15.2 x 13 x 5.1 cm)

        Dimensions WxDxH (Power Supply)

        • 3 x 6.1 x 1.2 in. (7.5 x 15.5 x 3.1 cm)


        • Puck and Power Supply: 3.25 lbs (1.47 kg)
        • Complete Package: 4.8 lbs (2.18 kg)


        • RoHS 3 (Directive 2015/863)
        • IEC62368-1 and IEC62368-2
        • PSE Diamond certified power supply

        Package Contents

        • eGPU Breakaway Puck
        • Power adaper
        • Power cord
        • 0.5-meter Thunderbolt 3 (40Gbps) cable
        • Documentation
        eGPU Breakaway Puck Package Contents

        Support Links

        Support Knowledge Base

        Drivers, Documentation, FAQs

        macOS eGPU Info

        Official Thunderbolt-connected external graphics card support for the eGPU Breakaway Puck Radeon RX 5500 XT and eGPU Breakaway Puck Radeon RX 5700 is limited to macOS Catalina 10.15.7 (and greater) and Thunderbolt 3 equipped Macs. See the PDF for compatibility details.

        PDF Icon

        Product Manual

        PDF Icon

        Technical Notes

        • Apple notebooks with 45-60W AC power adapters may be powered and charged by the eGPU Breakaway Puck, even while gaming. Apple notebooks with AC power adapters rated at 85-100W will accept 60W power from the Puck but will slowly discharge. Connecting bus-powered storage to a laptop will draw additional power that may affect the charging (discharging) rate. When sleeping, any connected computer that supports Thunderbolt 3 charging will be charged to 100% by the Puck.
        • Support for four 4K monitors requires a Sonnet Thunderbolt Dual HDMI 2.0 Adapter or Thunderbolt Dual DisplayPort Adapter (both sold separately).
        • Ultimate gaming performance is attained by using a display attached to eGPU.



        PuckCuff VESA Mounting Bracket Kit

        Part No. CUFF-PUCK

        • VESA mounting kit for eGFX Breakaway Puck
        • Mounts eGFX Breakaway Puck to the back of a compatible VESA monitor or multi-monitor stand
        Thunderbolt 3 Cable (0.7-meter)

        Thunderbolt 3 Cable (0.7-meter)

        Part No. TCB-TB3-07M

        • 0.7-meter Thunderbolt 3 (40Gbps) cable
        • Delivers full 40Gb/s bandwidth
        • Supports 100W of Power Delivery (PD)
        Thunderbolt 3 to Dual DisplayPort Adapter

        Thunderbolt 3 to Dual DisplayPort Adapter

        Part No. TB3-DDP4K

        • Connects up to two DisplayPort displays to a single Thunderbolt 3 port
        • Enables you to work more efficiently
        • No power adapter required
        • Built-in audio support
        • Compact and rugged design
        • Won't drain system resources
        Thunderbolt 3 to Dual HDMI Adapter

        Thunderbolt 3 to Dual HDMI Adapter

        Part No. TB3-DHDMI

        • Connects up to two HDMI displays to a single Thunderbolt 3 port
        • Enables you to work more efficiently
        • No power adapter required
        • Built-in audio support
        • Compact and rugged design
        • Won't drain system resources

        eGPU Breakaway Puck RX 5500 XT/5700