Header image: AI-generated illustration of the Koro 640 GX S in a campervan’s electrical system.
New Victron · METSTRADE 2026 · Campervans, caravans and boating
Victron has launched the Koro 640 GX S, a single unit that combines almost everything you currently have fitted separately in the 12 or 24 V system of a campervan, caravan or boat: solar charging, alternator charging, battery monitor, power distribution and the GX control unit. We’ll tell you what it is, what connections it has, what problem it solves and what we still need to find out.
Short answer
The Victron Koro 640 GX S is a direct current (DC) distribution unit for 12 V or 24 V systems which integrates, in a single unit, two MPPT solar regulators, a DC-DC charger for charging from the alternator, a battery monitor, 18 load outputs (6 adjustable at 10 A, 3 switchable at 15 A and 9 continuous outputs of up to 25 A) and a GX communication hub. It features an inverter-charger output, 9 digital inputs, 4 tank level inputs and connectivity via VE.Bus, VE.Can, Ethernet, Bluetooth and Wi-Fi. Victron has unveiled it as a preview at METSTRADE 2026; it has not yet announced a price or release date.
Key figures published by Victron:
- System voltage: 12 V or 24 V.
- Charging: 2 solar inputs (MPPT) and a DC-DC charger powered by the starter battery.
- Outputs: 6 adjustable 10 A outputs, 3 switchable 15 A outputs, 9 continuous outputs of up to 25 A and 2 generic 50 A inputs/outputs.
- Inputs: 9 digital and 4 tank-level.
- Connectivity: VE.Bus, 2 × VE.Can, HDMI, 2 × USB, Ethernet, Bluetooth and Wi-Fi.
- To be published: MPPT and DC-DC current ratings, dimensions, price and availability.
What’s inside the Koro 640 GX S?
In a single enclosure, you’ll find six modules that are currently purchased, wired and configured one by one:
01
2 MPPT solar controllers
Two separate solar inputs. Useful if you have panels on the roof and a portable one, or if they face in two different directions.
02
DC-DC charger
Charge the service battery from the starter battery (alternator) whilst driving or sailing, without the need for a separate booster.
03
Battery monitor
Charge status, current consumption and range, just like a SmartShunt or a BMV, without having to fit a separate shunt.
04
18 power sockets
Dimmable, switchable and continuous for lights, water pump, fridge, ventilation or electronics, plus 2 x 50 A.
05
GX Communications Centre
The system’s central unit, such as a Cerbo GX: it connects all the Victron devices and enables them to be viewed and controlled remotely.
06
Intelligent load control
Dimming and switching of loads, tank levels and automated controls, via your mobile or the GX Touch.
Inputs, outputs and connectivity
This is the official connection diagram published by Victron. It shows everything that can be connected to the Koro without the need for any intermediate equipment:
Inputs, outputs and connectivity of the Koro 640 GX S. Image: Victron Energy.
Power inputs and outputs
- 6 adjustable 10 A outputs: dimmable lighting.
- 3 switchable 15 A outputs: stairlight, fridge, water pump.
- 9 continuous outputs of up to 25 A: ventilation, air, TV and other fixed costs.
- 2 generic 50 A inputs/outputs.
- Output for inverter/charger (for example, a MultiPlus).
- Entries: 2 solar panels, a starter battery and an auxiliary (service) battery.
Signalling, control and communication
- 9 digital inputs: switches, sensors or alarms.
- 4 tank-level inputs: clean water, grey water, fuel or other.
- Connectivity: VE.Bus, 2 × VE.Can, HDMI, 2 × USB, Ethernet, Bluetooth and Wi-Fi.
- Local and remote monitoring: on a computer, mobile phone or GX Touch screen.
What problem does it solve?
Anyone who has set up the electrical system in a campervan or on a boat knows this: the 12 V system ends up being a collection of boxes (regulator, booster, shunt, fuse holder, distributor, relays, Cerbo) connected by metres of cable, terminals and hours of configuration. Every connection is a potential point of failure, and every piece of kit means yet another app or setting to manage. The Koro brings all of this together in a single unit designed to work seamlessly from day one.
Installation by components (today)
- 5 or 6 different pieces of equipment to buy and set up.
- A lot of wiring between them: longer assembly times and more potential points of failure.
- Each device is configured separately.
- It takes up more space in the cupboard.
- Maximum flexibility when choosing each piece.
With the Koro 640 GX S
- A single unit with a solar charge controller, alternator, monitor, 18 outputs and GX.
- Far less wiring and a neater installation.
- An integrated system controlled from a single location.
- A compact design intended for use in vehicles and boats.
- Less flexibility: capabilities are determined by the equipment.
Main functions
- Charges from two sources: solar (two MPPT) and alternator (DC-DC), both controlled by the same unit.
- Monitoring of consumption: switch lights and electrical loads on, off and dim them intelligently.
- Deposit level: up to 4 visible tanks alongside the rest of the system.
- Local and remote control: from the app on your mobile, computer or a GX Touch screen.
- Automation: rules to enable the system to operate automatically (for example, switching off non-essential appliances).
- Full system communication: It integrates with the rest of the Victron ecosystem via VE.Bus and VE.Can.
Important: the Koro is not an inverter
The Koro manages the DC power supply (12/24 V) and has a dedicated output for connecting an inverter-charger. If you need 230 V for a coffee machine, microwave or power tools, you will still need an inverter or inverter-charger, such as a Victron, MultiPlus or Phoenix Smart, and the appropriate lithium battery.
Who is Koro for?
Campervans and motorhomes
For anyone who wants power strips, charging from the alternator and power consumption monitoring without cluttering up the cupboard with boxes and cables.
Caravan
A clean system that can be controlled via mobile phone, featuring dual solar charging, a battery monitor and a tank level indicator.
Boat
Unveiled at the world’s largest boat show: DC distribution, batteries, digital inputs and remote control, all in a single unit.
What we still don’t know
Just to be clear
Victron has unveiled the Koro as a preview and has not yet published its full technical specifications. At present, we do not know the current ratings of the solar regulators or the DC-DC charger, the capacity of the battery monitor, the dimensions, the weight, the protection rating, the price or the release date. We’re not going to make up figures: as soon as Victron publishes them, we’ll update this article and notify anyone who has asked us to do so.
Koro or pre-assembled board: which is best for you?
At FVComponentes, we already assemble Victron electrical installations pre-assembled on a panel For motorhomes, caravans and boats: inverter, battery, booster, regulator and protection devices, all wired and configured. The Koro does not replace this work, it simplifies it: when it becomes available, we will be able to integrate it into our dashboards as the core of the 12/24 V system.
Our approach is simple: if your system fits within the Koro’s capabilities, we’ll recommend the Koro; if you need more solar power, a higher charging current or 230 V, we’ll suggest the combination of equipment that works best. We always use genuine Victron components and provide a pre-configured system.
Conclusion
The Koro 640 GX S looks set to be the simplest way to set up the 12/24 V system in a campervan, caravan or boat using Victron: solar and alternator charging, a battery monitor, 18 power outlets, tank level inputs and GX functionality, all in a single unit. We’re still waiting for details on the charging currents, the price and the release date. If you’re interested, sign up and we’ll be the first to let you know.
Be among the first
Are you interested in the Koro 640 GX S?
Drop us a line and we’ll let you know as soon as Victron announces the price and availability. If you’re already fitting out your campervan or boat, tell us what you need and we’ll let you know if the Koro is right for you or which alternative we’d recommend at the moment.
Frequently asked questions
What is the Victron Koro 640 GX S?
It is a Victron DC distribution unit for 12 or 24 V systems, incorporating two MPPT solar regulators, a DC-DC charger, a battery monitor, 18 load outputs and a GX communication hub.
How many inlets and outlets does it have?
According to Victron: 6 adjustable 10 A outputs, 3 switchable 15 A outputs, 9 continuous outputs of up to 25 A, 2 generic 50 A inputs/outputs, one inverter-charger output, 2 solar inputs, a starter and auxiliary battery input, 9 digital inputs and 4 tank level inputs.
When will it go on sale and how much will it cost?
Victron has not yet announced either the release date or the price. It was unveiled as a preview at METSTRADE 2026. If you get in touch, we’ll let you know as soon as we have the details.
Does it replace the inverter or the MultiPlus?
No. The Koro handles the DC side and has an output for connecting an inverter-charger. To get 230 V, you’ll still need an inverter or an inverter-charger such as the MultiPlus.
Is it suitable for 12 V and 24 V?
Yes, Victron indicates that the Koro is designed for 12 V or 24 V systems.
Can I control it from my mobile?
Yes. It has Bluetooth and Wi-Fi, and Victron indicates local and remote control via a mobile phone, computer or GX Touch screen, with dimming, switching of loads and automation functions.
Sources: Victron Energy, «Metstrade Amsterdam 2026» (5 November 2026) · Marine Review, «Victron showcases the Koro 640 GX S and BMV-812 Smart at METS»



