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Small green circuit board with gold edge connector and two antenna sockets

Defendwe

Defendwe AR9287 AR5B97 300 Mbps 802.11 b/g/n Mini Half PCI-E Wi-Fi adapter

SKU CH-RQ9X-EBTKC

A Mini Half PCI-E wireless adapter delivering up to 300 Mbps over 802.11 b/g/n for compatible notebooks

  • TypeM.2 Wi-FI Adapter
  • Delivers up to 300 Mbps PHY rates with Atheros AR9287 MIMO design
  • Supports 802.11 b/g/n for broad wireless compatibility
  • Works with Intel 945/965/PM45/GM45/GM57/PM57 chipsets and most Mini PCI-E notebooks
  • Single-chip PCIe solution simplifies installation in mid-tier notebooks and netbooks
  • Enables direct peer-to-peer links without an access point using Wi-Fi Alliance P2P standard

Chipset and interface

The Defendwe AR9287 AR5B97 is a Mini Half PCI-E wireless adapter built around the Atheros AR9287 single-chip PCIe solution. It targets owners of compatible notebooks and netbooks that need to add or replace 802.11 b/g/n connectivity using an available Mini PCI-E slot.

Sustained throughput behaviour

The adapter delivers up to 300 Mbps PHY rates in both transmit and receive modes, supporting simultaneous connections without relying on an access point. Its MIMO design maintains balanced two-way performance during peer-to-peer networking sessions under continuous load.

Practical interface limits

Compatibility is confirmed for Intel 945, 965, PM45, GM45, GM57 and PM57 platforms and most notebooks with a Mini PCI-E interface such as Dell, Toshiba and Acer models. The card is not compatible with IBM and some HP laptops, and no other accessories are included.

Highlights

  • Delivers up to 300 Mbps PHY rates with Atheros AR9287 MIMO design
  • Supports 802.11 b/g/n for broad wireless compatibility
  • Works with Intel 945/965/PM45/GM45/GM57/PM57 chipsets and most Mini PCI-E notebooks
  • Single-chip PCIe solution simplifies installation in mid-tier notebooks and netbooks
  • Enables direct peer-to-peer links without an access point using Wi-Fi Alliance P2P standard

Specifications

TypeM.2 Wi-FI Adapter

Questions about this item

Does the AR9287 chipset run hot or draw much power when the adapter stays active all day?

The AR9287 is a single-chip PCIe design rated for 300 Mbps PHY rates; its low-power architecture keeps heat and draw modest during continuous use.

What slot and antenna setup must my notebook already have for this half-size Mini PCI-E card to work?

Your notebook needs a free Mini PCI-E slot and two antenna leads; the card itself is a half-height module with no cables included.

Will the adapter function in an older laptop that uses an Intel 945 or 965 chipset?

Yes — the supplier lists compatibility with Intel 945, 965, PM45, GM45, GM57 and PM57 platforms, though IBM and some HP models are excluded.

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