The QL550 might have weak armor protection but it packs a heavy punch with its Type99 30mm gun + HJ73 turret. With a V6 water-cooled diesel engine, it can reach a maximum speed 130 km/h. It has a crew of four and weighting in around a ton and half. Furthermore, it has a data bus that can keep track all systems on-board.
The latest photo released by PLA's Army website
Here are some older QL550 pics
Note the cage armor