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Fanfold Paper
Posts: 14
Registered: ‎12-30-2013
Location: mohali, punjab
Views: 14,383
Message 1 of 3

USB 3.0 extremely slow speed

Respected reader,


                              i m using lenovo z500 since last 4 months n there hav been no issues i resently upgraded to windows 8.1 and i found that my laptop givs miserable transfer rates while connected to USB 3.0  It hardly givs me a speed of 2-6mbps with usb 3.The drivers support on the site says that its an inbox driver which is preinstalled while installing windows but i wonder its not effective .


            Please help me get that effectiveness of usb 3.0 n tell me what to do to get it bk upto high speeds.


Thanking You.


Divey Sawhney.



Retired Support Specialist
Posts: 4,447
Registered: ‎04-22-2013
Location: Philippines
Views: 14,372
Message 2 of 3

Re: USB 3.0 extremely slow speed

hi cratosmax,


Thanks for Posting!


Can you try checking this simila article that might help.



Solid Cruver

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What's DOS?
Posts: 1
Registered: ‎04-23-2014
Location: Seattle, WA
Views: 14,314
Message 3 of 3

Re: USB 3.0 extremely slow speed

I had the same problem on a Thinkpad T430, the usb 3.0 speed max was around 36 mb/second. The steps below fixed it, the link is the source.  My USB 3.0 ports then went up to 140 mb/second !


  • The "USB selective suspends settings" option in the Power Options may be Enabled.

    • Click Start, type Power Optionsin the Search box and then click Power Options from the returned list

    • Click Change plan settings for the selected Power plan

    • Click Change advanced power settings

    • Expand USB settings and then USB selective suspend setting and change the setting to Disabled for the option for On battery: or Plugged in:

    • Click OK on the Power Settings window and click Save changes on the Edit Plan Settings window

      Important: This is a default power setting , disabeling this setting will cause additional battery power consumption when your mobile PC is in Sleep or Hibernation mode and unplugged.


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