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Roku Premiere (3920X)

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Roku Premiere (3920X)

FCC approval date: 24 September 2018
Country of manuf.: China

Type: media streamer

FCC ID: TC2-R1024

Power: 5 VDC, ? A

CPU1: MStar MSO9380 (1.2 GHz, 4 cores)
FLA1: 512 MiB
536,870,912 B
4,194,304 Kib
524,288 KiB
4,096 Mib
0.5 GiB
(Macronix MX30LF4G28AC-XKI)
RAM1: 1 GiB
1,024 MiB
1,073,741,824 B
8,388,608 Kib
1,048,576 KiB
8,192 Mib
(Nanya NT5CC256M16ER-EK × 2)

Expansion IFs: none specified

WI1 chip1: Realtek Model?
WI1 802dot11 protocols: bgn
WI1 MIMO config: 1x1:1
WI1 antenna connector: none


Flags: HT20, HDMI 2.0a, 4K

802dot11 OUI: none specified

For a list of all currently documented MStar SoC's with specifications, see MStar.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.

Product page

The only difference between this Roku Premiere (3920X) and the Roku Premiere+ (3921X) is the remote included with the device. The Premier+ (3921X) includes the Voice remote with TV power and volume buttons while the Premier (3920X) includes the simple remote.

The wireless chip ID is not legible in the FCC photos but it is a 24-pin QFN from Realtek. This suggests a RTL8188FTV (USB 2.0) or a RTL8189FTV (SDIO). Both are 1x1:1.

See also[edit]