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Victron GX product range


GX products are Victron's state-of-the-art monitoring solution. The family consists of the different GX products, and their accessories.

The GX-device lies at the heart of the system - providing monitoring, and operating as the communication-centre of your installation. All the other system-components - such as inverter/chargers, solar chargers, and batteries - are connected to it. Monitoring can be carried out locally and remotely - via our free-to-use Victron Remote Management portal (VRM). The GX-device also provides Remote firmware updates and allows inverter/charger settings to be changed remotely.

The GX Family consists of these models:

  • Cerbo GX - Our newly released GX product.
  • Color Control GX - Our first released GX product, the CCGX has a display and buttons.
  • Venus GX - The Venus GX has more analog and digital IO, no LCD and is more cost effective than the CCGX.
  • CANvu GX - The CANvu GX is best for harsh environments - when its IP67 rating and touch LCD is a must.
  • Octo GX - The Octo GX is particularly suited to medium size installations which have many MPPT Solar Chargers, as it has 10 VE.Direct ports.
  • Maxi GX - Compared to the other GX devices, the Maxi GX has most CPU power and most VE.Direct ports: 25. This is the GX device to use for large systems with many VE.Direct MPPT Solar Chargers.

Lastly, there is a GX device built into our MultiPlus-II GX and EasySolar-II GX Inverter/chargers.

Available accessories

Comparison table

User interface Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
Display GX Touch 50
optional touch display (16)
LCD Display & 7 buttons no display no display 4.3“ touch-screen 2×16 character display
Remote Console yes
Buzzer yes yes yes no yes no
Documentation Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
Manual Cerbo GX manual CCGX manual VGX manual OGX manual CANvu manual Maxi GX manual MultiPlus-II GX manual
Product detail page page page page page page page page
Victron comm. ports Cerbo GX CCGX Venus GX Octo GX CANvu GX(12) Maxi GX MultiPlus-II GX and EasySolar-II GX
VE.Direct ports
(always isolated)
3 (1) 2 (1) 10 (1) 3 (1) 25 1
(always isolated)
2 paralleled RJ45 sockets 1 RJ45 socket 2 paralleled RJ45 sockets
VE.Can yes - non isolated 2 paralleled RJ45 sockets – isolated no (14)
Communication Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
USB 3 USB Host ports 2 USB Host ports 1 USB Host port
Ethernet 10/100 RJ45 socket - isolated except shield 1 port. isolation?(12) 10/100 RJ45 socket
WiFi built-in optional (2) built-in, but see (3) built-in, external antenna (11) optional (2) no built-in
Bluetooth Smart yes (17) no
Micro SDcard slot SDHC cards up to max. of 32GB. (5) no yes no
Second CAN-bus port
(also features BMS-Can (18))
no no yes - non-isolated yes - non-isolated no no no
BMS-Can port (15) yes no yes (14)
Built-in RS485 no no no yes - non-isolated no no
IO Cerbo GX CCGX Venus GX Octo GX CANvu GX(12) Maxi GX MultiPlus-II GX and EasySolar-II GX
Programmable relay (7) 2 x NO/NC (8) 1 x NO 1 x NO/NC (8) 1x NO / NC 2x NO / NC (8) n/a
Resistive tank level inputs 4 (9) no 3 (9) no
Temperature sense inputs 4 (10) no 2 (10) no
Digital Inputs 4 no 5 3 1 4 no
Third party compatibility Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
Canbus-BMS batteries Many battery brands. See here for details
Fronius PV Inverters See here for details
SMA PV Inverters See here for details
ABB PV Inverters See here for details
SolarEdge PV Inverters See here for details
Marine MFD App Support Generic MFD Manual, Navico, Garmin, Raymarine
Performance Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
CPU dual core single core quad core
RAM 1GB 256MB 512MB 512MB 256MB 512MB 512MB
Max. VE.Direct devices (1) tbd - 15 orso 5 6 10 4 25 25
Other Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
Supply voltage 8 - 70 VDC 8 - 32 VDC 32 - 70 VDC powered internally, no external supply
Mounting Wall or DIN rail (35mm)(19) Panel Integration Wall mounting DIN Rail (35mm) Panel Wall mount IP65 Built-in
Outer dimensions
( h x w x d )
78 x 154 x 48 mm 130 x 120 x 28 mm 45 x 143 x 96 mm 61 x 108 x 90 mm ? 600 x 380 x 210 mm
Operating temperature -20 to +50°C -20 to +70°C -20 to +50°C
Battery backupped clock yes no yes yes
5V output no 1 A (13) no
Standards Cerbo GX CCGX Venus GX Octo GX CANvu GX Maxi GX MultiPlus-II GX and EasySolar-II GX
Safety tbd EN 60950 ? ? ?
EMC tbd EN 61000-6-3, EN 55014-1, EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive tbd E4-10R-053535 In progress ? ? no


  1. The listed maximum on the `Performance` section in above table is the total connected VE.Direct devices such as MPPT Solar Charge controllers. Total means all directly connected devices plus the devices connected over USB. The limit is mostly bound by CPU processing power. Note that there is also a limit to the other type of devices of which often multiple are connected: PV Inverters. Up to three or four three phase inverters can typically be monitored on a CCGX. Higher power CPU devices can monitor more.
  2. Though the CCGX has no built-in WiFi that functionality can easily be added by attaching a USB-WiFi dongle. See CCGX Manual, section 1.4.2 for details.
  3. The built-in WiFi in the Venus GX has a very low signal strength - unfortunately. It is strong enough to connect to a phone, tablet or laptop in order to access setup and monitoring. But to connect the Venus GX to the internet either use the built-in Ethernet port or add a USB-WiFi dongle. See CCGX Manual, section 1.4.2 for details. Make sure the Venus GX is running v2.06 or later - early shipments of Venus GX units ran v2.05.
  4. The hardware of the Venus GX and Octo GX includes a built-in Bluetooth Smart chipset which hasn't proved satisfactory. Bluetooth Smart for GX devices is coming soon but will not use built-in chipsets.
  5. Larger SD memory cards (SDXC) are not supported. SD cards can be used for two purposes:
  6. The second CANbus port is accessible via the GND, CAN-H and CAN-L terminals. Note that the port is not Isolated. See Settings → Services for configuring that port.
  7. The programmable relay can be set to act as an alarm relay, automatic genset start stop, or an on/off switch, and is controlled via the GUI and/or ModbusTCP.
  8. In the Venus GX hardware there are two relays - at present only one of them is available for use.
  9. The tank level inputs are resistive and should be connected to a resistive tank sender. Victron does not supply tank senders. The tank level ports can each be configured to work with either European (0 - 180 Ohm); or US tank senders (240 - 30 Ohm).
  10. The Cerbo GX has four temperature terminals, and the Venus GX has two. They can be used to measure & monitor all kinds of temperature-inputs. Temperature senders are not included. The required sensor is ASS000001000 - Temperature Sensor QUA/PMP/Venus GX. (Note that this is not the same as the BMV temperature accessory.)
  11. Octo GX comes with a small Wifi antenna. You may remove and replace it with any other Wifi antenna having an RP-SMA connector.
  12. The 5V output on the Venus GX can be used to power, for example, a USB hub. Note that its output is not current limited or otherwise protected, and it shares the internal power supply in the Venus GX: overdrawing from it will result in shutdown(s) of the Venus GX. It is recommended to install a fuse for prevention.
  13. Though the Maxi GX, MultiPlus-II GX and EasySolar-II GX all have a dual set of RJ-45 sockets labelled VE.Can, this port is actually a dedicated BMS-Can port. It can only be used to connected to managed batteries like Freedomwon, BYD, Pylontech and others, at 500kbps. The hardware does not meet the requirements for a VE.Can port; and thus it is not possible to use to port to connect Victron products such as the SmartSolar VE.Can MPPT product range. Note that current version of Venus OS firmware still allows to select the VE.Can function and other baudrates. The result will be unreliable, and future firmware versions will lock the feature to BMS-Can only and 500kbps.
  14. A BMS-Can port is a port dedicated to be used for connecting managed batteries, like BYD, Pylontech, Freedomwon and others, only. It is not possible to connect Victron VE.Can products to that port. To connect such managed battery, use our special cables, and see documentation here. Connect the side labelled 'VE.Can' into the BMS-Can/VE.Can port on the GX Device. And connect the other side to the battery. The baudrate of a BMS-Can port is fixed to 500kbps.
  15. The GX Touch 50 connects to the Cerbo GX using a single cable; fixed permanently to the GX Touch 50, which on the other end splits into a USB and a connector for the video signal. Both need to be inserted into the Cerbo GX, taking one of the three USB ports. The USB part of the cable is used to power the GX Touch 50. The cable is 2 meters in length; and can not be extended in length.
  16. The Bluetooth feature of the Cerbo GX allows to configure its WiFi and Ethernet settings from within VictronConnect.
  17. The secondary CAN port, available on some GX devices as per table above, can be configured to be used as a BMS-Can port, as well as other profiles. For details, see manual.
  18. DIN rail mounting requires additional accessory - DIN35 Adapter.
venus-os/start.txt · Last modified: 2020-02-14 11:42 by guy_stewart