undervoltage for SSD usb 3.0 but fine for HDD usb 2.0

[webdev]

I have 2 external storage, SSD usb 3.0 and HDD usb 2.0

HDD usb 2.0 is working fine.

SSD usb 3.0 will get undervoltage warning if cold booted(poweroff), no matter in USB 3 or USB 2 port. but it won't get undervoltage warning if I boot OS using sudo reboot!

[webdev]

no more undervoltage warning after change to boot from USB, the only difference is SD card was removed.how much power does SD card needed?