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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

  • WAN interfacesMulti-Gig Ethernet ports - Orbi Router: One (1) 10 Gig inter
  • Router & satellite counts3-Pack (1 Router, 2 Satellites)
  • Covered area9,000 sq. ft.
  • Network ports4 × 10/100/1000M
  • Wi-fi standardsWi-Fi 7
  • Wireless speed21 Gbit/s

Model Orbi 870

Model 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.

How it compares

Measured against everything we stock in Mesh Wi-Fi Systems, at today’s prices. Recalculated every night.

Price $1,088.99
Pricier than about 97% of the 99 comparable items (median $190.99).

Specifications

Product
Brand nameNetgear
Model nameOrbi 870
Part numberRBE873-100NAS
Product colorWhite
Product typeMesh WiFi System
Connectivity
Wi-fi standardsWi-Fi 7
Wireless speed21 Gbit/s
Radio bandsTri-band with 10 streams of WiFi:
6 GHz3 (4 × 4/320 MHz, 4K-QAM): 11,520 Mbit/s
5 GHz (4 × 4/240 MHz, 4K-QAM): 8,640 Mbit/s
2.4 GHz (2 × 2/40 MHz, 1K-QAM): 688 Mbit/s
Multi-link Operation: Combines two WiFi bands:
Backhaul: Shared 5 GHz & 6 GHz
Fronthaul: 5 GHz & 6 GHz
Antenna configuration8
Ports & slots
WAN interfacesMulti-Gig Ethernet ports - Orbi Router:
One (1) 10 Gig internet WAN port
Four (4) 10/100/1000/2500 Mbit/s Gigabit Ethernet LAN ports
Multi-Gig Ethernet ports - Orbi Satellites:
Four (4) 10/100/1000/2500 Mbit/s Gigabit Ethernet LAN ports (each)
Network ports4 × 10/100/1000M
Size & build
Shipping weight2.27 kg
Package size508 × 279 × 229 mm
In the box
Router & satellite counts3-Pack (1 Router, 2 Satellites)
Included itemsWhole-Home Tri-Band Mesh WiFi 7 Add-on Satellite 870 Series
1 x Power Adapter
Quick Start Guide
More details
Covered area9,000 sq. ft.

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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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