Roku Streaming Stick HD (3840EU)

The Roku Streaming Stick HD (3840EU) is a compact entry-level streaming device designed for Full HD televisions, offering a simple way to upgrade any HDMI-enabled TV into a smart entertainment system. Released in 2025, it focuses on smooth 1080p streaming performance, easy installation, and a completely hidden design that plugs directly into the back of your TV. With Roku OS built in, it provides access to popular streaming apps, free live TV channels, and personalized recommendations in a lightweight and energy-efficient format.

Product Features

Full HD 1080p Streaming Performance

The Roku Streaming Stick HD supports up to 1080p Full HD at 60fps, delivering clear and smooth video playback for everyday streaming. It also includes automatic upscaling from 720p content to improve viewing quality on compatible displays.

Compact Hidden Design for Clean Setup

Designed as a plug-in streaming stick, the device connects directly to your TV’s HDMI port and remains hidden behind the screen. This reduces cable clutter and creates a clean, minimalist entertainment setup ideal for wall-mounted televisions.

Efficient Performance with ARM Processor

Powered by an ARM Cortex A55 processor with 512 MB RAM, the device delivers stable and responsive performance for HD streaming. It is optimized for light-to-moderate streaming usage, ensuring smooth navigation through the Roku interface.

Dual-Band Wi-Fi Connectivity

With dual-band Wi-Fi 4 (802.11n) support on both 2.4 GHz and 5 GHz frequencies, the device maintains stable streaming performance with reduced buffering. This helps ensure consistent HD playback across most home networks.

Roku Voice Remote with TV Controls

The included Roku Voice Remote allows users to search for content, launch apps, and control playback using voice commands. It also includes dedicated TV power, volume, and mute controls for simplified operation.

Bluetooth Headphone Mode for Private Listening

The device supports Bluetooth 5.0 headphone pairing, allowing users to listen privately without disturbing others. This feature is ideal for late-night viewing or shared living spaces.

Smart Home and Streaming Ecosystem Support

The Roku Streaming Stick HD works with Apple AirPlay, HomeKit, Google Home, and Amazon Alexa. This enables voice control, screen mirroring, and seamless integration with smart home devices.

Energy-Efficient USB-C Power Design

Powered via USB-C, the device can often be connected directly to a TV’s USB port. This makes installation easier while keeping power consumption low and eliminating the need for extra adapters in some setups.

Product Specifications

• Product Name: Roku Streaming Stick HD
• Model Number: 3840EU (also referenced as 3840R)
• Processor: ARM Cortex A55
• RAM: 512 MB
• Internal Storage: 512 MB
• Operating System: Roku OS with automatic updates
• Maximum Resolution: 1080p Full HD (1920 × 1080) at 60fps
• Upscaling: 720p content upscaled to Full HD
• HDR Support: Not supported
• Video Codecs: H.264 (AVC), H.265 (HEVC)
• Audio Support: Dolby Audio passthrough, DTS Digital Surround, digital stereo over HDMI
• Wireless Connectivity: Dual-band Wi-Fi 4 (802.11n, 2.4 GHz / 5 GHz)
• Bluetooth: Bluetooth 5.0 for headphone mode
• HDMI Output: Integrated HDMI connector (plug-in stick design)
• Power Input: USB-C (5V / 1A)
• Power Consumption: Approximately 2.2W during streaming
• Smart Home Compatibility: Apple AirPlay, HomeKit, Google Home, Amazon Alexa
• Remote Type: Roku Voice Remote with TV power, volume, and mute controls
• Dimensions: 94.5 × 20 × 11.4 mm (3.7 × 0.8 × 0.45 inches)
• Weight: 26 g