Correct Power Adapter Plug Size? - Drobo 5N2 Random Drive Dropouts on Cold Boot
Hi all,
My Drobo 5N2 has all five drive bays populated. On every cold boot, it randomly reports a different drive bay as dropped or missing. The affected bay is not consistent, so I suspect the original power adapter may be aging or failing to provide stable current during startup.
I am planning to replace the power adapter with a compatible 12V unit for the Drobo 5N2, but I am unsure about the correct DC barrel plug size. Some sources say the correct plug is 6.5×3.0mm, but my current adapter appears to look closer to 5.5×2.5mm.
Can anyone confirm the correct DC plug size for the Drobo 5N2? Also, if 5.5×2.5mm is not the correct size, how could my current adapter have worked reliably for around three years?
Any confirmed measurements or experience with replacement adapters would be appreciated.