I have an Asus RT-N66U with tomato-K26USB-NVRAM64K-1.28.0500.5MIPSR2Toastman-RT-N-VLAN-VPN-NOCAT. ZOTAC ZBOX nano XS AD11 Plus with OpenELEC 2. When I copy files to a USB drive attached to that from a Windows 8 PC I get around 15 MB/s speed. But if I connect the same USB drive to my Asus router and enable USB sharing, I get file transfer of 3 MB/s from Windows 8. How come? Why my Samba shared OpenELEC machine gives x5 times faster file transfer than directly connecting my USB to Asus router?