Knowledge Base › Communication Modules
Victron Energy Interface MK3-USB
Official manufacturer GLOBAL verified Sept. 25, 2026
Identity
| category | communication_modules |
| manufacturer | Victron Energy |
| model | Interface MK3-USB |
| product_status | active |
| region | GLOBAL |
| variant | — |
Electrical
| function |
configuration and firmware updates
Interface MK3-USB
|
| functions |
Configuration and firmware updates from a computer
Interface MK3-USB
|
| local_access |
True
Interface MK3-USB
|
| official_product_url |
https://www.victronenergy.com/accessories/interface-mk3-usb
Interface MK3-USB — inventory record source_url
|
| supply_voltage | 100-240 V AC |
| supported_inverter_families |
['Multi', 'MultiGrid', 'MultiPlus', 'MultiPlus-II', 'Quattro', 'VE.Bus BMS V2', 'ECOmulti', 'EasySolar', 'EasyPlus', 'Inverters with a VE.Bus communication port']
disputed
Interface MK3-USB
|
Physical / mechanical
| mounting | DIN-rail |
Interfaces & connectors
| bluetooth | True |
| can | True |
| cellular | True |
| documented_ports | [{'port_role': 'PROPRIETARY_BUS', 'port_label_from_manual': 'VE.Bus communication port', 'port_type': 'VE.Bus (RJ45)', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Product description', 'quote': 'The MK3-USB allows the following products to connect to a computer for configuration and firmware updates: Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, Inverter/Charger settings in ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port.'}, {'port_role': 'USB', 'port_label_from_manual': 'USB', 'port_type': 'USB', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Product description', 'quote': 'The MK3-USB allows the following products to connect to a computer for configuration and firmware updates'}] disputed |
| ethernet | True |
| external_interface |
USB (to a computer)
Interface MK3-USB
|
| host_interface |
VE.Bus communication port
Interface MK3-USB
|
| interfaces | RS485, Ethernet, Wi-Fi |
| rs485 | True |
| supported_devices_max | 32 |
| usb |
True
Interface MK3-USB
|
| wi_fi | True |
Certifications
| certifications | CE - EMC Directive 2014/30/EU (EN 55014-1:2017/A11:2020, EN 55014-2:1997/A1:2001/A2:2008, ISO 7637-2:2016); Low Voltage Directive 2014/35/EU (EN-IEC 60335-1:2012 incl. amendments, EN-IEC 62109-1:2010); RoHS 2011/65/EU and 2015/863/EU (EN-IEC 63000:2018) |
Documents
application_note
VictronConnect configuration guide for VE.Bus products
declaration_of_conformity
Victron Energy Declaration of Conformity - Interfaces (2021-12-29)
product_page
Interface MK3-USB
Recorded conflicts
interfaces.documented_ports Review required
[{'port_role': 'PROPRIETARY_BUS', 'port_label_from_manual': 'VE.Bus communication port', 'port_type': 'VE.Bus (RJ45)', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Product description', 'quote': 'The MK3-USB allows the following products to connect to a computer for configuration and firmware updates: Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, Inverter/Charger settings in ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port.'}, {'port_role': 'USB', 'port_label_from_manual': 'USB', 'port_type': 'USB', 'direction': 'bidirectional', 'electrical_domain': 'communication', 'quantity': 1, 'document': 0, 'page': 'Product description', 'quote': 'The MK3-USB allows the following products to connect to a computer for configuration and firmware updates'}] — stored value
[{'port_role': 'USB', 'port_label_from_manual': 'USB', 'port_type': 'USB', 'direction': 'bidirectional', 'electrical_domain': 'SIGNAL', 'document': 0, 'page': 'product page, description', 'quote': 'connect to a computer for configuration and firmware updates'}, {'port_role': 'PROPRIETARY_BUS', 'port_label_from_manual': 'VE.Bus communication port', 'port_type': 'RJ45', 'direction': 'bidirectional', 'electrical_domain': 'SIGNAL', 'document': 0, 'page': 'product page, description', 'quote': 'Inverters with a VE.Bus communication port'}] — incoming package
Detected during import deep-enrich-2026-09-batch08
interfaces.external_interface Resolved — kept current value
USB (to a computer) — stored value
VE.Bus — The MK3-USB allows the following products to connect to a computer for configuration and firmware updates: Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, Inverter/Charger settings in ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port.
Detected during import deep-enrich-2026-09-batch08
interfaces.host_interface Resolved — kept current value
VE.Bus communication port — stored value
USB — The MK3-USB allows the following products to connect to a computer for configuration and firmware updates: Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, Inverter/Charger settings in ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port.
Detected during import deep-enrich-2026-09-batch08
electrical.supported_inverter_families Review required
['Multi', 'MultiGrid', 'MultiPlus', 'MultiPlus-II', 'Quattro', 'VE.Bus BMS V2', 'ECOmulti', 'EasySolar', 'EasyPlus', 'Inverters with a VE.Bus communication port'] — stored value
Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port — The MK3-USB allows the following products to connect to a computer for configuration and firmware updates: Multi, MultiGrid, MultiPlus, MultiPlus-II, Quattro, VE.Bus BMS V2, Inverter/Charger settings in ECOmulti, EasySolar, EasyPlus, and Inverters with a VE.Bus communication port.
Detected during import deep-enrich-2026-09-batch08
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | One worldwide product; Victron publishes no market-specific variant. |
| withheld:bluetooth | false |
| withheld:can | false |
| withheld:cellular_4g | false |
| withheld:cloud_required | false |
| withheld:ethernet | false |
| withheld:max_devices | "One VE.Bus system per interface" |
| withheld:protocols | ["VE.Bus"] |
| withheld:rs232 | false |
| withheld:rs485 | false |
| withheld:wifi | false |