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White rectangular wall-mountable gateway with front LED strip and rear port array

Ubiquiti Networks

Ubiquiti Networks UDW (420W) firewall appliance

SKU CH-XM9H-AS83Y MPN UDW (420W)

Wall-mountable gateway with WiFi 6, 17 GbE and 10G SFP+ LAN ports, 2.5GbE and 10G SFP+ WAN, 3.5 Gbps throughput, and 300 simultaneous sessions

  • TypeWired + Wireless
  • Form FactorWall Mountable
  • StandardsWiFi Standard: 802.11a/b/g/n/ac/ax (WiFi 6)
  • SecurityWEP, WPA-PSK, WPA-Enterprise (WPA/WPA2/WPA3)
  • Ports17 x 1GbE RJ45, 1 x 2.5GbE RJ45, 2 x 10G SFP+
  • Simultaneous Sessions300

Model Dream Wall

Show 1 more configurations
  • Enterprise-grade WiFi 6 coverage with integrated 4x4 MIMO access point
  • 5 Gbps routing throughput for high-speed network performance
  • 17 Gigabit LAN ports including PoE++, PoE+ and PoE for flexible device power
  • Dual 10G SFP+ ports enable high-bandwidth uplink and LAN connectivity
  • Quad-core ARM Cortex-A57 processor with 4 GB DDR4 and 16 GB eMMC storage

All-in-One Gateway with WiFi 6

The Ubiquiti Dream Wall UDW combines a 3.5 Gbps router, enterprise-grade WiFi 6 access point, and UniFi Console in a single wall-mountable unit. It targets IT managers who need consolidated networking and wireless for mid-size offices or branch locations. The integrated 4x4 MIMO radio serves dense client environments without separate access points.

Replaces Separate Router, Switch, and AP

This appliance consolidates a dedicated router, PoE switch, and wireless controller into one device. The upgrade is worth it when managing multiple UniFi sites from a single pane of glass reduces operational overhead. It is not for buyers who need modular redundancy or carrier-grade NAT throughput beyond the rated 3.5 Gbps.

Wall Mount with PoE Budget Planning

The unit mounts on a wall using the included bracket and connects via 17 GbE RJ45 LAN ports, one 2.5 GbE WAN port, and two 10G SFP+ ports. Four PoE++, four PoE+, and four PoE ports power attached devices directly. Installers must calculate total PoE draw against the 420 W budget to avoid overload. The operating range of -10 to 40 °C suits indoor mechanical rooms.

Highlights

  • Enterprise-grade WiFi 6 coverage with integrated 4x4 MIMO access point
  • 5 Gbps routing throughput for high-speed network performance
  • 17 Gigabit LAN ports including PoE++, PoE+ and PoE for flexible device power
  • Dual 10G SFP+ ports enable high-bandwidth uplink and LAN connectivity
  • Quad-core ARM Cortex-A57 processor with 4 GB DDR4 and 16 GB eMMC storage

Specifications

BrandUbiquiti Networks
SeriesGateway
ModelDream Wall
Part NumberUDW (420W)
TypeWired + Wireless
Form FactorWall Mountable
StandardsWiFi Standard: 802.11a/b/g/n/ac/ax (WiFi 6)
SecurityWEP, WPA-PSK, WPA-Enterprise (WPA/WPA2/WPA3)
Ports17 x 1GbE RJ45, 1 x 2.5GbE RJ45, 2 x 10G SFP+
Simultaneous Sessions300
LAN PortsLAN:
(17) GbE RJ45 ports
(1) 10G SFP+ port
WAN:
(1) 2.5 GbE RJ45 port
(1) 10G SFP+ port
LEDsEthernet White: link/activity
SFP+ White: link/activity
PSU Blue: ready
Amber: failure
VPNYes
Throughput3.5 Gbps
Temperature-10 to 40° C (14 to 104° F)
Humidity5 to 95% noncondensing
FeaturesProcessor Quad-core ARM® Cortex®-A57 at 1.7 GHz
System memory 4 GB DDR4
On-board storage 16 GB eMMC
Integrated 128 GB SSD
Pre-installed 512 GB microSD card
Expansion slot Micro SD memory card*
*Requires a memory card with at least 128 GB of storage.
Management interface Ethernet
Bluetooth
WiFi
Power method Universal AC input 100—240V AC, 7A Max., 50/60Hz
Power supply (2) Hot-Swappable AC/DC 550W PSU*
*Comes with (1) pre-installed PSU.
Max. power consumption 532W (Including PoE output)
PoE budget 420W
Max. PoE wattage per port by PSE PoE: 15.4W
PoE+: 30W
PoE++: 60W
Voltage range PoE m
Dimensions549 x 342 x 62 mm (21.6 x 13.5 x 2.4")
Weight8.6 kg (19 lb)
Shipping weight11.18 kg
Package size665 × 442 × 130 mm

Other versions of this model

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Questions about this item

What wall space and weight allowance does the UDW (420W) need for mounting?

The unit measures 549 x 342 x 62 mm and weighs 8.6 kg, so the wall must support that weight and provide clearance for the full depth.

How do you install the UDW (420W) and which step is commonly missed?

Mount the appliance on the wall, connect the 2.5 GbE WAN port and the 10G SFP+ WAN uplink, then adopt it in the UniFi OS console; the step often missed is completing the adoption and firmware update before configuring VLANs or WiFi.

What storage components may need replacement during the life of the UDW (420W)?

The pre-installed 512 GB microSD card and the integrated 128 GB SSD are the field-replaceable storage media; the 16 GB eMMC and 4 GB DDR4 memory are soldered and not user-serviceable.

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