Hardware Spec Index

Lumora WR-3991 Plus AX5400 Dual-band Wi-Fi 6 Router

Wi-Fi Routers · Lumora · SKU WR3991-PLUS · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index8,188 (Wi-Fi Routers scale)
Category rank#26,212
Street price$669
Power45 W
Performance per dollar12.24
Released2019

Specifications

BrandLumora
ModelLumora WR-3991 Plus
Wi-Fi standardWi-Fi 6 (IEEE 802.11ax)
Speed classAX5400 (sum of per-band PHY rates)
BandsDual-band (2.4 / 5 GHz)
Spatial streams2×2 + 4×4
Max channel width160 MHz
Modulation1024-QAM
Multi-Link Operation (MLO)Not supported
WAN port1 Gbps RJ45
LAN ports1× 2.5 Gbps + 3× 1 Gbps
SecurityWPA3, WPA2
MeshEasyMesh compatible
Coverageup to 4,400 sq ft

Related guides

Wi-Fi 6 vs Wi-Fi 6E vs Wi-Fi 7 ComparedWi-Fi 7 (802.11be) ExplainedWi-Fi 6E Explained2.5GbE, 5GbE and 10GbE Networking

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Cite this page: Hardware Spec Index, “Lumora WR-3991 Plus AX5400 Dual-band Wi-Fi 6 Router”, https://vextor7.com/item/41668810 (accessed 2026-10-24).