Connect android-x86 run on VirtualBox as USB device for debug

I have: Debian GNU/Linux 8.4 (jessie) installed on old Gygabyte laptop.

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                2
Model name:            Intel(R) Core(TM)2 Duo CPU     T5250  @ 1.50GHz

I have VirtualBox: Version 5.0.20 r106931
On it I installed android-x86-2.3-RC1-eeepc.iso image.
Now I want debug my web sites.
Can I? and how to connect guest as USB device?
All manuals just say how to use connected usb devices inside the guest.

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