I installed an mSATA SSD in the first PCI slot as per the instructions in the official video and moved the smaller wi-fi card to the last PCI slot. The router sees the SSD, but I’m not sure if it detects both wi-fi cards correctly.
Forris interface shows two configurable wi-fi networks without any additional details about the physical devices behind them.
Luci also shows two. One is Qualcomm Atheros QCA9880 802.11bgnac (radio0), but the other is Generic MAC80211 802.11bgn (radio1).
Output of: lspci | egrep -i 'network|ethernet’
02:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless Network Adapter
03:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
I’m not sure if this is the correct setup. I would add that only the PCI1 and PCI2 LEDs in front of the router are on. The PCI3 LED is off.