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Compact white desktop switch with eight RJ45 ports and subtle branding

Ubiquiti Networks

Ubiquiti Networks USW-Ultra (42W) 8-port GbE PoE+ network switch

SKU CH-VXWF-TGZDK MPN USW-Ultra (42W)

Compact Layer 2 switch with seven PoE+ ports, one PoE++ input and 42 W PoE budget

  • Product formatDesktop
  • Supported standardsPassive PoE
  • Network cablingRJ45
  • Management typeManaged
  • Uplink ports8
  • Uplink portsRJ45

Model Ultra

  • Compact Layer 2 switch with eight GbE ports for simple network expansion
  • Seven PoE+ output ports power access points or cameras without extra injectors
  • Single PoE++ input port lets the switch draw power from upstream infrastructure
  • 42 W PoE budget available when fed by PoE++ source for multiple devices
  • 16 Gbps switching capacity and 48 Gbps forwarding rate handle heavy traffic loads

Compact Layer 2 PoE Switch

The Ubiquiti Networks USW-Ultra is a managed desktop switch designed for small networks needing powered device connectivity. It provides eight Gigabit RJ45 ports with a total non-blocking throughput of 8 Gbps and a switching capacity of 16 Gbps. Seven ports deliver PoE+ output for devices such as access points or cameras. The unit operates as a Layer 2 managed switch suited for compact deployments.

Versatile Mounting and PoE Input

A desktop format allows placement on a shelf or desk, while the hardware kit supports alternative mounting orientations. One uplink port accepts PoE++ input to power the switch itself, enabling installation without a nearby AC outlet. When fed by PoE++, the switch offers a 42 W PoE budget for connected devices; a PoE+ input reduces the available budget to 16 W. AC power is required for PoE output if the input source is insufficient.

Silent Operation and Power Efficiency

Fanless construction ensures completely silent operation in noise-sensitive environments such as offices or homes. The switch consumes minimal power for its own operation while delivering up to 42 W to attached endpoints. A packet forwarding rate of 48 gigabits per second and 768 KB buffer memory maintain stable throughput under load. Passive cooling eliminates moving parts, reducing long-term maintenance needs.

How it compares

Measured against everything we stock in Ethernet & PoE Switches, at today’s prices. Recalculated every night.

Price $115.99
Cheaper than about 77% of the 2,759 comparable items (median $482.99).

Specifications

Product
Brand nameUbiquiti Networks
Product lineNetwork Switch
Part numberUSW-Ultra (42 W)
Performance
Forwarding rate48 Gbit/s
Memory
Buffer size768 KB
Connectivity
Supported standardsPassive PoE
Network cablingRJ45
Management typeManaged
Uplink connection10/100 Mbit/s
Main port speedTotal non-blocking throughput 8 Gbit/s
Switching capacity 16 Gbit/s
Management accessRJ45
SNMP supportNo
Layer support2
Ports & slots
Uplink ports8
Main ports8
Main port typeRJ45
Power
Power over Ethernet(7) PoE/PoE+ (Pins 1, 2+; 3, 6-)
Power details(1) 54 V, 3.9A power adapter (Not included)
(1) 54 V, 1.1A power adapter (Not included)
PoE++ (Pins 1, 2+; 3, 6- and 4, 5+; 7, 8-)
Max power draw4.2 A, 50 V
Size & build
Product dimensions203 × 76 × 33 mm (8 × 3 × 1.3 in)
Product weightDevice: 320 g (11.3 oz)
Wall mount: 45 g (1.6 oz)
Shipping weight0.45 kg
Package size235 × 95 × 51 mm
In the box
In the boxHardware Kit
Environment & compliance
ComplianceTrue, unknown
Temperature rangePoE++ input: -30 to 60 °C (-22 to 140 °F)
60 W AC adapter input: -20 to 45 °C (-4 to 113 °F)
210 W AC adapter input: -20 to 60 °C (-4 to 140 °F)
Humidity range10 to 90% noncondensing
More details
Product formatDesktop
Indicator lightsSystem Status
Ethernet PoE Link/activity
Maximum heat dissipation210 W

Other versions of this model

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Questions about this item

What speed does the RJ45 uplink interface actually cap at in practice?

The RJ45 uplink ports negotiate at 10 or 100 Mbps, so the physical link is limited to 100 Mbps even though the switch fabric supports 16 Gbps total non-blocking throughput.

What mounting hardware is included and what physical space does the desktop format need?

A hardware kit is supplied for versatile mounting; the desktop form factor fits on a shelf or can be wall-mounted using the included brackets.

How is the switch powered for PoE output and which step is often missed?

Connect a PoE++ source to the single PoE++ input port or use the AC adapter; without one of those, the switch runs but the seven PoE+ output ports stay unpowered.

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