That looks like repurposed TP-Link MR3020 - clicks link - YES!
There’s dude in China whose selling WR703n’s with double the RAM compared to the factory version. Search on Ebay for “WR-703n 64MB SLBoat”.
You can then load Grugq’s PORTAL software to use when you’re feeling justifiably paranoid. Y’know, for when you’re travelling in totalitarian states…say, the US of A.