Compact near silent and versatile the 4 bay m2 ssd nasbook tbs 453a is ideal for office meetings and multimedia applications featuring a powerful processor a built in 4 port network switch and using up to 4 m2 ssds for storage the tbs 453a not only provides full fledged nas functions with raid protection but also can act as a switch and share network access with multiple users regardless of being powered on or off coupled with its dual hdmi output and 4k h264 video display transcod