The DS 213air (with me with 2 WD Red 3TB in use) is already an impressive NAS. Decisive for this model were floating point, Wi-Fi and USB 3.0. DSM is Me is a largely mature operating system. With the latest update and the latest Android Apps also a very useful cloud system for all those who prefer to entrust not external systems such. B. Dropbox their data. However, a weak point is the WLAN of the DS 213 Air. The data throughput is very leisurely. After several configuration variations with and without repeater I have the DS now by Lankabel on the router and thus finally a satisfactory performance.