The drobo mini power supply is a spare power adapter for your drobo mini portable storage array it provides 100 240 vac 2a power and retains the 33 foot power cord of the oem unit that ships with the array keeping a spare around ensures that you will never face downtime because of a missing cord also useful for keeping offsite in case you repeatedly move the unit key features spare power supply for the drobo mini supplies 100 240 vac 2a power includes 33 ft 1m power cord