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Devolo 9831 Dlan 550+ Wi-Fi Add-On Powerline Adapter

Up to 500 Mbps via the power line for perfect HD video and audio streaming, with 300 Mbps with Wi Fi for tablets, smartphones, and laptops Range+ Technology - the premium feature that provides greater range and stability which, with Wi Fi Move Tech

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Devolo 9831 DLAN 550+ Wi‑Fi Add‑On Powerline Adapter

The Devolo 9831 DLAN 550+ is a cutting‑edge powerline networking solution that seamlessly extends your home or office network through the existing electrical wiring. By combining high‑speed Ethernet connectivity with an integrated Wi‑Fi access point, this device delivers reliable, fast, and secure internet access to devices that are otherwise out of reach of conventional routers.

Key Features

  • Powerline Technology (IEEE 1901): Utilises the electrical grid to transmit data at speeds up to 550 Mbps, ensuring a stable connection even in rooms far from the main router.
  • Integrated Wi‑Fi Access Point: Supports IEEE 802.11a/b/g/n, providing dual‑band (2.4 GHz and 5 GHz) coverage for smartphones, tablets, laptops, and smart devices.
  • Fast Ethernet Port: One 10/100 Mbps RJ45 port allows wired connections to PCs, gaming consoles, or media servers.
  • Compact White Design: Sleek, unobtrusive appearance that blends with most décor.
  • Internal Antenna: Optimised for indoor use, delivering consistent signal strength without external protrusions.
  • Wide Operating Conditions: Functions reliably in environments ranging from 10 % to 90 % relative humidity and temperatures between –25 °C and +70 °C.
  • Low Power Consumption: Only 4.4 W when active, reducing energy usage compared to traditional routers.
  • Broad OS Compatibility: Fully supported on Windows 7 (all editions), macOS X 10.10 Yosemite, Android, and iOS devices.

Technical Specifications

Parameter Specification
AC Input Voltage 196 – 250 V
Antenna Type Internal
Colour White
Ethernet LAN Yes (1 port)
LAN Interface Type Fast Ethernet (10/100 Mbps)
Wi‑Fi Supported Yes
Wi‑Fi Standards IEEE 802.11a/b/g/n
Modulation Schemes BPSK, QPSK, OFDM, 64‑QAM, 256‑QAM, 1024‑QAM, 4096‑QAM
Networking Standards IEEE 1901, IEEE 802.11a/b/g/n, IEEE 802.3 (Fast Ethernet), IEEE 802.1p, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x
Operating Relative Humidity 10 % – 90 %
Power Consumption 4.4 W
Power Plug Type Type G (UK plug)
Quantity per Pack 1 unit
Storage Conditions Relative humidity: 10 % – 90 %; Temperature: –25 °C to +70 °C
Supported Operating Systems Windows 7 (all editions, 32‑bit and 64‑bit), macOS X 10.10 Yosemite, Android, iOS

How It Works

The device plugs directly into a standard electrical outlet. Data from your primary router is transmitted over the powerline network to the Devolo 9831, which then broadcasts it via its built‑in Wi‑Fi module or forwards it through its Ethernet port. Because the signal travels along the existing wiring, there is no need for additional cabling or complex installations.

Installation and Setup

  1. Plug in the Adapter: Insert the unit into a wall outlet near your router.
  2. Connect to Router: Use an Ethernet cable to link the adapter’s LAN port to one of the router’s spare ports.
  3. Power On: The device will automatically power up and begin synchronising with the network.
  4. Configure Wi‑Fi Settings: Access the web interface (usually at http://devolo.local) to set SSID, password, and security options. The adapter supports WPA2‑PSK for secure connections.
  5. Place Strategically: Position the unit in a central location within the desired coverage area to maximise signal reach.

Performance Highlights

  • Maximum theoretical throughput of 550 Mbps, ideal for HD streaming, online gaming, and large file transfers.
  • Dual‑band Wi‑Fi reduces interference by allowing devices to switch between 2.4 GHz (longer range) and 5 GHz (higher speed).
  • Fast Ethernet port provides a reliable wired connection for stationary devices that demand consistent bandwidth.

Security Features

The adapter incorporates robust security protocols:

  • WPA2‑PSK Encryption: Protects wireless traffic from eavesdropping.
  • MAC Address Filtering: Allows administrators to restrict network access to approved devices.
  • Secure Powerline Communication (PLC): Uses encryption keys to prevent unauthorized PLC traffic.

Use Cases

  • Home Entertainment: Stream 4K video from a media server located in the basement without lag.
  • Gaming Rooms: Provide low‑latency connections to gaming consoles that are far from the main router.
  • Office Environments: Extend network coverage to meeting rooms or storage areas where running new cables is impractical.
  • Smart Home Integration: Connect IoT devices such as smart thermostats, security cameras, and voice assistants that rely on stable Wi‑Fi signals.

Maintenance Tips

  • Keep the adapter in a dry, well‑ventilated area to avoid overheating.
  • Avoid placing it near large metal objects or high‑frequency appliances that may interfere with signal quality.
  • Periodically check for firmware updates via the web interface to benefit from performance improvements and security patches.

Conclusion

The Devolo 9831 DLAN 550+ Wi‑Fi Add‑On Powerline Adapter delivers a versatile, high‑performance networking solution that bridges the gap between wired and wireless connectivity. Its compact design, low power consumption, and broad compatibility make it an ideal choice for anyone looking to enhance network coverage without the hassle of extensive cabling.

Frequently Asked Questions

  • Can I use multiple adapters? Yes; pairing additional units extends coverage further across your home or office.
  • Is it compatible with routers that support 802.11ac? The adapter itself supports up to 550 Mbps, but it can still connect to newer routers for back‑haul communication.
  • What if I experience interference? Ensure adapters are not placed near high‑power appliances and consider using the 5 GHz band for devices that support it.

With its blend of speed, reliability, and ease of use, the Devolo 9831 DLAN 550+ stands out as a premier choice for expanding network reach in any environment.


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- PowerLAN adapters
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Tags Ethernet LAN Wi-Fi 1 pc Devolo Dlan 550 Powerline Speeds Up 550 WiFi Devolo 550 Devolo 9831 9831 Dlan Devolo 9831 Dlan
Identifiers
Brand Devolo
Devolo is a German technology company that specialises in the development of powerline and wireless networking products. The company was founded in 1999 by Heiko Harbers and Jörg Müller, and is headquartered in Aachen, Germany.
MPN Devolo N150799
Model Devolo N150799
ID 10610019
Dimensions / Weight
Key Features
AC input voltage
The range of alternating current voltage that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device across different regions.
196 - 250 V
Antenna type
The classification of an antenna used in a device, indicating its physical configuration or mounting style such as external, internal, integrated, directional, omnidirectional, or multi‑antenna setups (e.g., "2x2", "4 x External"). It helps buyers understand how the antenna is attached and what signal coverage it may provide.
Internal
Colour
The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.
White
Ethernet LAN
Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.
Yes
Ethernet LAN interface type
Indica el tipo o estándar de la conexión Ethernet que posee un producto, como Gigabit Ethernet, 10 GbE, 2.5 GbE, Fast Ethernet, etc. Los valores suelen ser textos descriptivos sin unidades numéricas y pueden incluir varias opciones separadas por comas cuando el dispositivo soporta más de una velocidad.
Fast Ethernet
Ethernet LAN ports
Represents the total count of Ethernet LAN (RJ‑45) interfaces available on a product. The value is an integer indicating how many physical Ethernet ports are present, regardless of speed or generation.
1
Mac operating systems supported
A list of macOS operating system versions that the product supports or is compatible with, such as "macOS 10.15 Catalina", "macOS 11 Big Sur" or newer releases. Each entry represents a distinct OS version that can run on or be supported by the device.
Mac OS X 10.10 Yosemite
Mobile operating systems supported
A list of mobile operating systems that the product supports, including specific versions and architectures when relevant. Each value represents a distinct OS that is compatible with the device.
Android, iOS
Modulation
The modulation technique used by a wireless device or component to encode digital information onto a carrier signal. Common schemes include QAM, OFDM, PSK, FSK and their variants. This attribute helps users understand the signal processing method and compatibility with other equipment.
64-QAM,256-QAM,1024-QAM,4096-QAM,BPSK,OFDM,QPSK
Operating relative humidity
The range of relative humidity (in percentage) within which the product is designed to operate reliably. Values are expressed as a minimum–maximum interval such as "20 - 80 %" and indicate the acceptable environmental moisture level for optimal performance.
10 - 90 %
Power consumption 4.4 W
Power plug
The type of electrical power connector or plug used by the product, such as IEC, NEMA, BS1363, C14, C20, etc. It indicates which standard socket or coupler is required for connecting the device to a mains supply or other equipment.
Type G
Storage temperature
The range of temperatures in which a device can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.
-25 - 70 °C
Top Wi-Fi standard
A list of the wireless networking protocols and frequency bands that a device can connect to, such as IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, Wi‑Fi 4 (802.11n), Wi‑Fi 5 (802.11ac) or Wi‑Fi 6 (802.11ax). The values are typically separated by commas and may include both the technical name and a consumer‑friendly label.
4 (
Wi-Fi standards
A list of the wireless networking protocols and frequency bands that a device can connect to, such as 802.11a, 802.11b, 802.11g, Wi‑Fi 4 (802.11n), Wi‑Fi 5 (802.11ac) or Wi‑Fi 6 (802.11ax). The values are typically separated by commas and may include both the technical name and a consumer‑friendly label.
IEEE 802.11a,IEEE 802.11b,IEEE 802.11g,IEEE 802.11n

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