I have the ASUS RT-AC66U and I want to add a USB storage to it. It has 2x USB, and Im already using one for my printer. So the last one I want to use to attach a USB storage, and I've read some reviews stating the throughput of the USB could be up to 18 mb/s.
So in regard of USB storage, should I care about hard disk cache?
Simple powered-over-usb seems to have 8 mb cache, other (externally powered) has 16 for instance.