Selling my Orbi RBK852, switched to an ASUS RT-AX89X. Didn't really need the mesh setup, though it works really well on the Orbi.
Will ship UPS Ground. Paypal Good & Services Only. $560.
PIC
I sent an e-mail to ASUS support through their support site portal. I got a canned "AX89X doesn't support WAN aggregation, sorry" response. Any tips to get this firmware?