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Three white tower units, one router and two satellites, standing upright on a flat surface

Netgear Inc.

Netgear Inc. Orbi 870 RBE873-100NAS tri-band WiFi 7 mesh Wi-Fi system 3-pack

SKU CH-JB32-18CF8 MPN RBE873-100NAS

A tri-band WiFi 7 mesh system covering 9,000 sq. ft. with 21 Gbps speed for up to 150 devices

  • ColorWhite
  • TypeMesh WiFi System
  • Router & Satellite Counts3-Pack (1 Router, 2 Satellites)
  • Covered Area9,000 sq. ft.
  • WAN PortsMulti-Gig Ethernet ports - Orbi Router: One (1) 10 Gig inter
  • LAN Ports4 x 10/100/1000M

Model Orbi 870

Option 3-Pack

  • WiFi 7 speeds up to 21 Gbps for 8K streaming and VR
  • 9,000 sq. ft. whole-home coverage from router and two satellites
  • Tri-band with 10 streams keeps 150 devices fast simultaneously
  • 10 Gig internet WAN port ready for multi-gig broadband plans
  • Quad-core 1.5 GHz processor powers low-latency gaming and video calls

Whole-home mesh system

The Netgear Orbi 870 Series is a tri-band WiFi 7 mesh kit containing one router and two satellites. It is built for large households that need consistent wireless coverage across multiple floors and outdoor areas. The system supports up to 150 connected devices simultaneously, making it suitable for homes with many smart devices, streaming boxes and work-from-home setups. Buyers who only need to cover a single small apartment may find the three-unit layout excessive.

21 Gbps aggregate throughput

The headline specification is a combined wireless data rate of 21 Gbps delivered across three bands: 11,520 Mbps on 6 GHz, 8,640 Mbps on 5 GHz and 688 Mbps on 2.4 GHz. Multi-link operation allows the system to combine two bands for backhaul or client links, keeping latency low when many devices are active. A 10 Gig internet WAN port on the router ensures the mesh can pass through multi-gig broadband without bottlenecking. Homes with slower internet plans will not utilise the full wireless capacity.

Low-profile thermal design

Each unit uses eight high-performance internal antennas and high-power amplifiers housed in a compact white enclosure without external moving parts. The router runs on a quad-core 1.5 GHz processor with 4 GB of memory, handling routing and security tasks while staying cool under continuous load. Passive cooling keeps acoustic output near zero, so the satellites can sit on open shelves in living spaces or bedrooms. Power draw scales with traffic but remains modest for always-on operation.

Highlights

  • WiFi 7 speeds up to 21 Gbps for 8K streaming and VR
  • 9,000 sq. ft. whole-home coverage from router and two satellites
  • Tri-band with 10 streams keeps 150 devices fast simultaneously
  • 10 Gig internet WAN port ready for multi-gig broadband plans
  • Quad-core 1.5 GHz processor powers low-latency gaming and video calls

Specifications

BrandNetgear
ModelOrbi 870
ColorWhite
TypeMesh WiFi System
Router & Satellite Counts3-Pack (1 Router, 2 Satellites)
Covered Area9,000 sq. ft.
Part NumberRBE873-100NAS
WAN PortsMulti-Gig Ethernet ports - Orbi Router:
One (1) 10 Gig internet WAN port
Four (4) 10/100/1000/2500 Mbps Gigabit Ethernet LAN ports
Multi-Gig Ethernet ports - Orbi Satellites:
Four (4) 10/100/1000/2500 Mbps Gigabit Ethernet LAN ports (each)
LAN Ports4 x 10/100/1000M
Wi-Fi StandardsWi-Fi 7
Wireless Data Rates21 Gbps
Frequency BandTri-band with 10 streams of WiFi:
6 GHz3 (4x4/320 MHz, 4K-QAM): 11,520 Mbps
5 GHz (4x4/240 MHz, 4K-QAM): 8,640 Mbps
2.4 GHz (2x2/40 MHz, 1K-QAM): 688 Mbps
Multi-link Operation: Combines two WiFi bands:
Backhaul: Shared 5 GHz & 6 GHz
Fronthaul: 5 GHz & 6 GHz
Antenna8
SpecificationProcessor - Router: Powerful quad-core 1.5 GHz processor
Antennas – Router & Satellites (each): Eight (8) high-performance internal antennas with high-power amplifiers
Devices: Up to 150 devices
Memory - Router: 4 GB flash and 2 GB RAM
Package ContentWhole-Home Tri-Band Mesh WiFi 7 Add-on Satellite 870 Series
1 x Power Adapter
Quick Start Guide
Shipping weight2.27 kg
Package size508 × 279 × 229 mm

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Questions about this item

How does the 21 Gbps total speed translate to actual throughput on my devices?

The 21 Gbps is the combined theoretical maximum across all three bands; real-world throughput per device will be lower and depends on client capability, distance, interference and the 10 Gig WAN link.

What does the tri-band Wi-Fi 7 backhaul cap at in practice?

The dedicated backhaul uses the 6 GHz band at up to 11,520 Mbps (4×4, 320 MHz, 4K-QAM), so inter-node traffic is limited by that radio's physical rate and environmental conditions.

How much space does each unit need for placement and ventilation?

Each router and satellite measures a compact desktop footprint with eight internal antennas; they require only a flat surface near a power outlet and a few centimetres of clearance for passive cooling.

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