M(micro) takes 2.5 sata hdd/ssd.  in terms of power consumption, 3.5 hdd consumes typically 5-8w on average...up to 10w for mechanical drives. A 2.5" mechanical drive will consume a bit less, because the discs inside are smaller and lighter, so the motor doesn't need as much oomph, torque, to keep the discs spinning. So a mechanical 2.5" drive will typically consume less than ~ 4-5 watts. Drives SpecificationInternally accessible 2.5-inch SATA drive.
Hello, can you connect 3.5 nas drive to optiplex 3040m? i have tried but it cant be seen, i think it does not provide enough of power. maybe some mod options?
Optiplex 3040m hdd option