4 devices, 2 with usb passthrough and 3 usb 3.0 ports

[Debugged]

Hey there!

I want to buy a laptop (asus n550jk-CN395D) and four extra devices:
- an usb powered external hdd (samsung m3 portable 1TB)
- a cooling pad (Cooler Masters' Notepal U2 Plus) - has a usb passthrough
- a keyboard (Razer Blackwidow 2014) - has another usb passthrough
- a mouse (Razer Diamondback)
* - an optional Gamepad i would change with the mouse or keyboard from time to time.

The problem is the laptop has only 3 usb 3.0 ports, one of which has that extra charging feature.

Can you please tell me how can I know which device uses more power, or at least suggest a configuration that would best assure the peripherals would get the power they need in the most appropriate way. I searched the web for peripherals power consumption, but didn't quite got anything, apart from the usb 3.0's max. power delivery of 4.5W.

Thank you in advance for your time!

 

[qazzi]

well you could just use a USB hub for your keyboard and mouse. (much safer, since the USB HDD needs all the power it can and also the cooling pad.)

 

[PCIBUSDRIVER]

As Qazzi said , but be sure to get a powered hub

 

[Debugged]

Thank you, Qazzi!