QNAP TS-421 4-Bay NAS Review

QNAP has introduced a new NAS series with the latest QTS 4.0 Operating System. The unit comes with a single-core Marvell CPU at 2.0GHz, 1GB of RAM and features a lot of connectivity options. On the front it looks pretty much the same as the TS-469L, but now we also have an active LCD screen with two buttons for navigation, but the IR sensor is missing since the unit does not come with a HDMI output… at MadShrimps