Broadcom.For a list of all currently documented Broadcom chipsets with specifications, see
N600 Wireless Dual Band Router
The BCM43236 used would appear (or would be likely) to vary..
- The FCC docs show the device w/ a BCM43236 (BCM43236KMLG, HT1127 P20, 146859 6 W;)
- At least some production units would appear to be using BCM43236B
The default SSID formats are probably NETGEARXX and NETGEARXX-5G.