Remote Management Card 205/305 Firmware 1.4.1 Released

December 11, 2023 by CyberPower

CyberPower has released an update to Remote Management Card Firmware for RMCARD 205 and RMCARD 305.  See what is new in the notes below and download.

RMCARD 205/305 Firmware Version 1.4.1 (US Release Date: 12/15/2023)

New Features

  • Adds support for Host Name setting
  • Adds commands for Accessory/Environment sensor commands in Command Line Interface (CLI)
  • Adds support of an event delay function in all overload related event logs

Feature Improvements


  • Support for ssh-ed25519 hostkey algorithm from SSH Server for improved security
  • Add support for IPv6 on the NTP and Syslog server settings
  • It now display passwords with asterisks ‘*’ when users log in via Hyper Terminal and Telnet
  • Expands the account/password length to up to 31 characters for the Viewer and Outlet User options
  • Update the “Date and Time” setting interface to a calendar-style format and extending the setting range from 2015 to 2099
  • Now includes the Utility Power Failed Delay and Low Battery Runtime Threshold with the Save and Restore Configuration function.
  • Modifications were made to improve some display content
  • Updated the SMS Clickatell Service to meet the latest API standard for Clickatell Server



  • Resolves an issue with HTTPS not being able to establish a connection when using a self-signed certificate with an RSA 2048-bit key
  • Fixes a problem where the RADIUS function is not able to work when the third or fourth digits of the IP address are set to “0”
  • Corrects an issue where the RMCARD would send an overload event notice while the UPS operating status was normal
  • Stop an issue where DHCP would be enabled intermittently with the OL series UPS
  • Fixes an error where the humidity isn’t displayed correctly in the field of Accessory humidity in all related event logs.
  • Fixes an issue with the the Save and Restore Configuration function not working when using the Power Device Network Utility 2 (PDNU2) Tool to upload a file
  • Corrects an issue with the value of the remaining runtime for Three Phase UPS being displayed incorrectly in PowerPanel Business (PPB)
  • Repairs an issue in the Event logs where outlet user names doesn’t work if the outlet user name contains special character ‘$’
  • Solves a problem where Event logs via email and trap intermittently lose communication with multiple SNEV001 connected
  • Fixes an issue with the Event Action function not being able to work when connecting an environmental sensor to RMCARD installed in an OL series UPS
  • Correct a problem with the trap OID when the “Accessory device structure is changed” event occur with 8 environmental sensors connected
  • Repairs an issue with the Humidity being recorded at 0% when its 100% RH with ENVIROSENSOR
  • Correct the issue with the Low threshold of temperature setting, for environmental sensor, at 33°F instead of 32°F on the configuration webpage
  • Fixes an issue with the Total Load on the [Summary->ATS Status] webpage being displayed incorrectly
  • Solves an issue with the Accessory information webpage being wrong if users try to update 8 SNEV001 at one time

Questions? Contact Tech Support Monday through Friday from 7am– 6pm cst.

Download link and release notes are available here: