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Green rectangular circuit board with gold edge connector and single MMCX antenna port

Ubiquiti Networks

Ubiquiti Networks XR2 2.4 GHz 802.11b/g Wi-Fi adapter

SKU CH-JV39-P762D MPN XR2

M.2 2.4 GHz 802.11b/g Wi-Fi adapter with 600 mW output, single MMCX antenna and 54 Mbps maximum data rate

  • Interface type32-bit mini-PCI type IIIA
  • Supported standardsIEEE 802.11b/g
  • Wireless speed6 Mbit/s, 9 Mbit/s, 12 Mbit/s, 24 Mbit/s, 36 Mbit/s, 48 Mbit
  • Security featuresWPA, WPA2, AES-CCM & TKIP Encryption, 802.1x, 64 / 128 / 152
  • Radio bands2.4 GHz
  • Indicator lightsXtremeRange
  • Carrier-class 2.4 GHz radio built for mesh and bridging reliability
  • 600 mW output power extends wireless reach in demanding environments
  • 32-bit mini-PCI type IIIA interface fits compatible internal slots
  • Single MMCX antenna port allows flexible external antenna selection
  • WPA2 and AES-CCM encryption with 152-bit WEP secures data traffic

Carrier-Class 2.4 GHz Radio Module

The Ubiquiti Networks XR2 is a carrier-class 802.11 b/g radio module built for mesh, bridging and infrastructure deployments. It operates exclusively on the 2.4 GHz ISM band and delivers data rates up to 54 Mbps. The adapter uses a 32-bit mini-PCI type IIIA interface and includes a single MMCX antenna port for external antenna connection.

Mini-PCI Interface and Antenna Flexibility

Installation requires a host device with a compatible 32-bit mini-PCI type IIIA slot. The single MMCX port allows the builder to select an external antenna matched to the link distance and pattern required. This internal form factor frees up external USB ports and avoids the bulk of dongle-style adapters in embedded or rack-mounted systems.

Sustained Output Power and Channel Options

The radio provides 600 mW output power with ESD and EMP protection for reliable operation under continuous load. Channel widths of 5, 10, 20 and 40 MHz are supported, enabling spectrum efficiency tuning for dense deployments. Security is handled by WPA, WPA2, AES-CCM, TKIP and 802.1x encryption alongside 64, 128 and 152-bit WEP. Buyers needing 5 GHz operation or 802.11n/ac/ax throughput cannot use this module.

How it compares

Measured against everything we stock in Wi-Fi Cards & USB Adapters, at today’s prices. Recalculated every night.

Price $64.99
Pricier than about 90% of the 1,565 comparable items (median $18.99).

Specifications

Product
Brand nameUbiquiti Networks
Model nameXR2
Product typeM.2 Wi-FI Adapter
Connectivity
Supported standardsIEEE 802.11b/g
Wireless speed6 Mbit/s, 9 Mbit/s, 12 Mbit/s, 24 Mbit/s, 36 Mbit/s, 48 Mbit/s, 54 Mbit/s
Radio bands2.4 GHz
Antenna configurationSingle MMCX
Ports & slots
Interface type32-bit mini-PCI type IIIA
Size & build
Shipping weight0.91 kg
Package size203 × 152 × 51 mm
More details
Security featuresWPA, WPA2, AES-CCM & TKIP Encryption, 802.1x, 64 / 128 / 152-bit WEP
Indicator lightsXtremeRange

Questions about this item

Does the 600 mW output power cause thermal throttling during continuous mesh or bridging duty?

The module is built for carrier-class mesh, bridging and infrastructure use, so sustained 600 mW transmission is within its design envelope.

How much heat or fan noise does the card add when running 24/7 in a mini-PCI slot?

It is a passive mini-PCI Type IIIA card with no onboard fan; heat dissipation depends on the host chassis airflow.

Which antenna connector must my existing hardware provide for the single MMCX port?

You need a compatible 2.4 GHz antenna or pigtail with an MMCX plug to attach to the card's single MMCX port.

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