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Netgear orbi 870 rbe870b tri-band Wi-Fi 7 mesh add-on satellite be21000 21GBps 4x 2.5GBe +3000 sq ft black

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Netgear orbi 870 rbe870b tri-band Wi-Fi 7 mesh add-on satellite be21000 21GBps 4x 2.5GBe +3000 sq ft black

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Description

Item No. 50029479-41b8-4b10-b872-ee09d8f0be03
NETGEAR Orbi 870 Series RBE870B Tri-Band WiFi 7 Mesh Add-On Satellite Tri-Band WiFi 7 BE21000Up to 21GBps · +3,000 sq ft4× 2.5GBE PortsDedicated Backhaul · Black The NETGEAR Orbi 870 Series RBE870B (part number RBE870B-100EUS) is the black tri-band WiFi 7 add-on satellite that extends an existing Orbi 870 system by up to 3,000 sq ft. With BE21000 speeds up to 21GBps, a dedicated backhaul and four 2.5 Gigabit ports, it adds fast, seamless coverage and plenty of wired connectivity to eliminate d

Details

NETGEAR Orbi 870 Series RBE870B Tri-Band WiFi 7 Mesh Add-On Satellite

Tri-Band WiFi 7 BE21000Up to 21GBps · +3,000 sq ft4× 2.5GBE PortsDedicated Backhaul · Black

The NETGEAR Orbi 870 Series RBE870B (part number RBE870B-100EUS) is the black tri-band WiFi 7 add-on satellite that extends an existing Orbi 870 system by up to 3,000 sq ft. With BE21000 speeds up to 21GBps, a dedicated backhaul and four 2.5 Gigabit ports, it adds fast, seamless coverage and plenty of wired connectivity to eliminate dead zones in larger homes. Typically in stock with fast delivery across Cyprus.

Before you buy
This is an add-on satellite, not a standalone router — it requires an existing NETGEAR Orbi 870 Series system to pair with. It is the black colour variant of the RBE870 (the white version is also available) and is designed specifically for the Orbi 870 range. It joins the network under your existing single Wi-Fi name.

Best For

✓Extending an existing Orbi 870 mesh system
✓Eliminating Wi-Fi dead zones in larger homes
✓Adding up to 3,000 sq ft of extra coverage
✓Homes with WiFi 7 devices needing more capacity
✓Wiring several 2.5G devices in another room
✓Matching a black Orbi 870 setup

Key Features

 
Tri-band WiFi 7 BE21000
Adds up to 21GBps of tri-band WiFi 7 across 2.4 GHz, 5 GHz and a 6 GHz band, driven by a quad-core 1.5 GHz CPU with 2GB RAM for fast performance even at the edges of a large home.
 
Dedicated backhaul
Uses a dedicated backhaul to the main router to keep the satellite’s connection fast and stable, with the option of 2.5G Ethernet backhaul for extra reliability.
 
Four 2.5 Gigabit ports
Four 2.5GBE ports let you hard-wire multiple fast devices — such as a games console, TV, desktop or NAS — in a location far from the main router.
 
Seamless coverage boost
Extends your existing Orbi 870 network by up to 3,000 sq ft under one Wi-Fi name, so devices roam automatically without dropping the connection.

Technical Specifications

Identification
Part Number RBE870B-100EUS
EAN / GTIN 0606449170412
MPN RBE870B
Product Type Tri-band WiFi 7 mesh add-on satellite (black)
Wireless
WiFi Standard WiFi 7 (802.11be), tri-band, BE21000
Rated Speed Up to 21GBps
Bands 2.4 GHz + 5 GHz + 6 GHz
Added Coverage Up to 3,000 sq ft
Backhaul, Ports & Hardware
Backhaul Dedicated backhaul (optional 2.5G Ethernet)
Ethernet 4× 2.5 Gigabit Ethernet
Hardware Quad-core 1.5 GHz, 2GB RAM
Requirements
Requires An existing NETGEAR Orbi 870 Series system
Role Add-on satellite (not a standalone router)
General
Colour Black
Placement Indoor

Frequently Asked Questions

Can the RBE870B work on its own as a router?
No. The RBE870B is an add-on satellite that extends an existing NETGEAR Orbi 870 Series system. It needs an Orbi 870 router to pair with and is not a standalone router.
How much extra coverage does it add?
It adds up to 3,000 sq ft of tri-band WiFi 7 coverage to your existing Orbi 870 network, helping remove dead zones in larger homes.
What is the difference between RBE870B and RBE870?
They are the same Orbi 870 add-on satellite in different colours — the RBE870B is black and the RBE870 is white. Choose the finish that matches your existing Orbi 870 units.
What are the four 2.5GBE ports for?
They let you hard-wire several fast devices near the satellite — such as consoles, TVs, desktops or a NAS — or set up a 2.5G wired backhaul to the main router for extra stability.
Singular Expert Insight
Add the RBE870B when you already own an Orbi 870 system and want more coverage or extra 2.5G wired ports in another part of the home, in a matching black finish — it keeps everything on one seamless WiFi 7 network. If you do not yet have an Orbi 870 system, buy a complete Orbi 870 kit (such as the RBE873 3-pack) rather than a lone satellite. Explore full kits in our routers and mesh systems.

Buyer’s Guide

Buy it if
You already have a NETGEAR Orbi 870 system and want to extend it by up to 3,000 sq ft with tri-band WiFi 7 and four 2.5GBE ports in a black finish.
Skip it if
You do not own an Orbi 870 system yet — a single satellite cannot work alone, so buy a complete Orbi 870 kit instead.
Also consider
Starting fresh? Choose an Orbi 870 RBE873 3-pack; for the fastest mesh, look at the quad-band Orbi 970 series.