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Green rectangular Mini PCI Express card with gold edge connector and black components

Intel

Intel 512AN_MMWW2 Mini PCI Express 5100 Wi-Fi adapter

SKU CH-BTRS-VEJMK MPN 512AN_MMWW2

A Mini PCI Express wireless adapter supporting dual-band 2.4 GHz and 5 GHz networks with up to 300 Mbps data rates

  • StandardsIEEE 802.11a/b/g, IEEE802.11n Draft
  • Wireless Data RatesUp to 300Mbps
  • InterfaceMini PCI Express
  • Frequency Band2.4 GHz / 5 GHz
  • AntennaDiversity Antenna
  • Dimensions2.0" x 1.18" x 0.13"
  • Dual-band 2.4 GHz and 5 GHz reduces interference
  • Draft 802.11n support delivers up to 300 Mbps throughput
  • Mini PCI Express form factor fits compatible laptop slots
  • Diversity antenna design improves signal stability in noisy areas
  • Compact 2.0 x 1.18 x .13 inch profile suits thin chassis

Compact Mini PCI Express adapter

The Intel 512AN_MMWW2 is a Mini PCI Express wireless card that supports IEEE 802.11a/b/g and IEEE 802.11n Draft standards. It connects notebooks or small-form-factor systems to 2.4 GHz and 5 GHz networks. A diversity antenna arrangement helps maintain link quality. This adapter suits owners of compatible laptops or embedded boards needing a replacement or upgrade.

Steady throughput on dual bands

Rated wireless data rates reach 300 Mbps under the supported draft-n specification. In sustained transfers the dual-band radio selects the clearer 2.4 GHz or 5 GHz channel to reduce retries. The diversity antenna samples both paths continuously, so throughput degrades less when one polarisation fades. Performance scales with the capability of the access point and client driver stack.

Low thermal and acoustic profile

The card draws power directly from the Mini PCI Express slot with no active cooling. Its 2.0 by 1.18 by 0.13 inch footprint leaves ample airflow in typical chassis. Operation is silent because there are no moving parts. Power consumption remains modest during continuous association and data flow, keeping system thermals unchanged.

Highlights

  • Dual-band 2.4 GHz and 5 GHz reduces interference
  • Draft 802.11n support delivers up to 300 Mbps throughput
  • Mini PCI Express form factor fits compatible laptop slots
  • Diversity antenna design improves signal stability in noisy areas
  • Compact 2.0 x 1.18 x .13 inch profile suits thin chassis

Specifications

BrandIntel
Model512AN_MMWW2
StandardsIEEE 802.11a/b/g, IEEE802.11n Draft
Wireless Data RatesUp to 300Mbps
InterfaceMini PCI Express
Frequency Band2.4 GHz / 5 GHz
AntennaDiversity Antenna
Dimensions2.0" x 1.18" x 0.13"
Shipping weight0.07 kg
Package size133 × 133 × 25 mm

Questions about this item

Does the 5100 adapter run hot or draw much power when it stays active all day?

The card draws very little power and stays cool because it only supports up to 300Mbps over 2.4 GHz and 5 GHz bands.

What antenna hardware must I already have for the diversity antenna to work?

Your laptop or motherboard needs two Mini PCI Express antenna cables connected to the two U.FL ports on the card.

Will the 512AN_MMWW2 fit in an older Mini PCI Express slot that only speaks 802.11a/b/g?

Yes, the interface is standard Mini PCI Express and the card falls back to 802.11a/b/g speeds automatically.

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