There are 2 products.
The QNAP TS-231P is a powerful but budget friendly network storage center. Use the TS-231P for network synchronization, remote access, as well as home entertainment. The QNAP TS-231P is a capable media center to stream HD movies through a wide variety of supported streaming options like Airplay, Chromecast, and DLNA. Or, build a powerful security surveillance station that stores your security footage.
The QNAP TS-251+ 2-Bay Next Gen Personal Cloud NAS is the perfect media center or storage space device. The QNAP TS-251+ is ready for a variety of intensive tasks. You can stream and transcode videos on the fly to virtually any device, store backups from your computer’s OS, make a file station for easy access to files, or even enjoy videos via HDMI output with the included controller. Everything is done via QTS 4, which is a simple and intuitive interface to help you configure and use NAS settings and features.