Next out is the totally redesigned AirPort card, providing 802.11ac Wi-Fi connectivity.

While the current and prior generations' Airport cards will fit in each others' logic board slots, their different lengths will prevent you from fastening them down. We haven't yet tested for compatibility beyond this.

At the heart of the card we find a Broadcom BCM4360, which enables operation on the 5 GHz band at speeds up to 1.3 Gbps and communication via Bluetooth 4.0.

Also on the board is a Skyworks SE5516 dual-band 802.11 a/b/g/n/ac WLAN front-end module.