Roku 4 Tech specs>

Networking

802.11ac MIMO dual-band wireless

10/100 Base-T Ethernet


Video Outputs

Up to 4K UHD (3840 × 2160) on 4K UHD TVs

Up to 1080p HD (1920 x 1080) on HD TVs

Up-scales 720p to 1080p HD on 1080p HD and 4K UHD TVs

Up-scales 1080p HD to 4K UHD on 4K UHD TVs

4K UHD 60 fps HEVC Playback

4K UHD 30 fps VP9 Playback (YouTube)

Playback from USB drives


Audio Output

Dolby Digital Plus 7.1 surround sound passed through via HDMI or optical output


Storage Expansion

microSD card port for additional game and channel storage

USB port for personal media expansion



Remote Control

Enhanced remote with voice search, point anywhere use, headphone jack, and motion-control for gaming.

Player includes IR receiver, compatible with various universal remotes.

Speaker for Remote Finder alerts


Power Consumption

12.4W (typical) when streaming 4K UHD video


Power Input

12V – 2A power adapter


USB Media Formats

Video: MP4 (H.264), MKV (H.264), HEVC (H.265)

Audio: MP3, Apple Lossless, WMA, AAC

Image: JPG, PNG, up to 4K UHD resolution



Size

6.5 x 6.5 x 0.8 inches

Weight

0.9 lb.
https://www.roku.com/products/roku-4