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Like a young fellow nervous to dance at prom, the AirPort card sits inconspicuously in the corner.

After a short hiatus, Broadcom is back to bring WLAN capabilities to the iMac.

A Broadcom BCM4331 single-chip WLAN solution dominates the tiny AirPort card.

The three Wi-Fi antennas are run by three Skyworks SE5515 Dual-Band frontend chips.

New from last year's model, Bluetooth and Wi-Fi are integrated into the same card, with the addition of a BCM20702 single-chip Bluetooth 4.0 processor.

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