For a list of all currently documented Realtek chipsets with specifications, see Realtek.
This device looks to be another screen streaming device a la Google's Chromecast.
"WN4507L V01" and "323C163791YD" is silkscreened on the device's board in the FCC photos.
Likely included PSU(s)
The power supply shown with the device in the FCC photos is a DVE DSA-5PFK-05 FUS 050100a.
|DVE DSA-5PFK-05 FUS 050100a (more)|
|Input: 100-240 VAC ~ 50/60 Hz, 0.2 A|
| Input connector: NEMA 1-15P|
Manuf. in: China Eff. level: 5
|Output: 5 VDC, 1 A|
|Output connector: USB Female A|