The SoC, the flash, the ethernet ports and ethernet switch all work.
The USB works.
The 11ac PCIe NIC internally is at least seen by the PCIE RC, but
I haven't tried using it yet. There's no driver and I haven't
yet swapped it out for a non-11ac chip.
The on-chip 2GHz wifi works, but there are some data errors that
get thrown up in STA mode when scanning. I have a feeling I have
to finish the DDR flush code out and have it run correctly on the
shared interrupts; that'll take a bit of time to get right.
But if you're after an updated piece of hardware, the Archer C7 v2
is certainly there, and you can replace the 11ac NIC with a 3x3
Atheros PCIe device (eg AR9380, AR9390, AR9580, etc) and it'll
"just work".
Tested:
* TP-Link archer c7v2.