Laptop can't handle two 2.5' external usb3.0 HDD !?

Question

My case is dell vostro 3750 1 - when I plug in two 2.5' usb 3.0 external HDD to two usb 3.0 ports (blue) in my laptop, around less then 1 min later , the power supply for the 2 ext Hdd is turn off => cannot transfer the files between 2 ext hdd 2 - when I plug in the two 2.5' ext 3.0 HDD, one to 3.0 port and one to 2.0 port on my laptop, nothing happen, transfer the files between them smoothly (~28MB/s) 3 - when I plug in one 2.5' ext 3.0 hdd to 3.0 port on my laptop, nothing happen, transfering the files between laptop and ext hdd is smoothly (~80MB/s) 4 - when plug in 2 ext HDD (1 2.5' and 1 3.5', both usb 3.0) ......... same problem with 1 5 - when plug in 2 ext HDD (both 3.5', both usb 3.0) ......... who knows? dont have to test lol.... but I think it can work Conclusion: 2 usb3.0 ports not enough power to run 2 ext usb 3.0 HDD !? Anyone experience about this? pictures: http://i50.photobucket.com/albums/f332/Cinebao/IMG_0002.jpg http://i50.photobucket.com/albums/f332/Cinebao/sds-1.jpg http://i50.photobucket.com/albums/f332/Cinebao/oko.jpg pc checkup: http://i50.photobucket.com/albums/f332/Cinebao/Untitled.jpg laptop with 2 usb3.0 ports list Asus N45/N55/N75 Dell xps 15, 17 Dell vostro (3350, 3450, 3550, 3750, V131) HP pavilion (dv7t, dv6z) ...

speedstep · Answer

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The drives need more power.

Thats why some drives come with Y cables.

Apricorn USB Power Adapter Y Cable AUSB-Y (Black/Grey)

Locked Topics – Laptops General

Apricorn USB Power Adapter Y Cable AUSB-Y (Black/Grey)

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