Typically use the 210, which has a power switch and function button on the back. It's that or step way up to a Synology or Qnap.
Wish there was an adapter to use a flash stick as a NAS, or those guys add a USB port like their competition did (our router of choice doesn't do USB file sharing, nor the ISPs when it's a simple audio system). Most clients music collection would fit and then no moving parts.
