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Small USB Wi-Fi adapter with integrated antennas, matte black finish

SIIG, Inc

SIIG, Inc JU-WR0112-S2 802.11n Wi-Fi adapter

SKU CH-Y77W-TPF9F MPN JU-WR0112-S2

USB Wi-Fi adapter adds Wireless-N connectivity with MIMO technology for up to 300 ft indoor and 900 ft outdoor range

  • TypeUSB Wi-FI Adapter
  • Weight0.1
  • Adds Wireless-N networking through a USB port
  • Extends coverage beyond Wireless-G across home or office
  • MIMO technology boosts data throughput and range
  • Reaches up to 300ft indoors and 900ft in open space
  • Works in Ad Hoc and infrastructure modes with built-in antennas

USB Wireless-N adapter for desktop and notebook

The SIIG JU-WR0112-S2 adds 802.11n Wi-Fi to any computer with a free USB port. It targets users who need to connect older hardware or replace a failed internal card without opening the case. MIMO technology and integrated antennas aim to improve throughput and reach compared with legacy Wireless-G gear. The adapter supports both Ad Hoc and infrastructure network modes for flexible deployment.

Thermals noise and power draw

The adapter draws power directly from the USB bus, so no external supply is required and total consumption stays very low. With no moving parts and a lightweight 0.1 g body, it runs silently and generates negligible heat during normal browsing, streaming or file transfers. There are no fan curves, pump noise or thermal throttling concerns to manage. Power draw scales only with wireless activity and remains well within standard USB limits.

Build quality and daily connectivity

Integrated antennas keep the profile compact and reduce the risk of snagging or breakage when moving a notebook between locations. The USB plug inserts into any Type-A port, leaving neighbouring sockets free and requiring no driver discs on modern operating systems. Because the radios are fixed inside the dongle, orientation sensitivity is lower than with external whip antennas. Users who need 5 GHz band support or newer Wi-Fi standards will need a different adapter.

Highlights

  • Adds Wireless-N networking through a USB port
  • Extends coverage beyond Wireless-G across home or office
  • MIMO technology boosts data throughput and range
  • Reaches up to 300ft indoors and 900ft in open space
  • Works in Ad Hoc and infrastructure modes with built-in antennas

Specifications

BrandSiig Inc.
Part NumberJU-WR0112-S2
TypeUSB Wi-FI Adapter
Weight0.1
Shipping weight0.05 kg
Package size159 × 133 × 102 mm

Questions about this item

How do I install the JU-WR0112-S2 USB Wi-Fi adapter and what step is often missed?

Plug the adapter into a free USB port on your desktop or notebook, then install the driver from the included disc or the manufacturer's website before connecting to a network; the step most people skip is installing the driver first, which leaves the device unrecognised.

What maintenance or replacement will the JU-WR0112-S2 need over time?

The adapter has integrated antennas and no user-serviceable parts, so no routine maintenance is required; replacement is only necessary if the unit fails or if you upgrade to a newer Wi-Fi standard.

What is the first range limit I will hit with the JU-WR0112-S2 under sustained use?

The manufacturer rates the operating distance at up to 300ft indoors and 900ft in open space; walls, interference and signal degradation will reduce the practical range well before those maximums are reached.

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