Let's take a closer look at the logic board:

1.3GHz (with Turbo Boost up to 2.6 GHz) dual-core Intel Core i5 processor, with integrated Intel HD graphics 5000

Intel platform controller hub (unmarked)

Intel DSL3510L Thunderbolt controller

Genesis Logic GL3219 USB 3.1 Gen 1 hub controller

Linear Technology LT3957 inverting controller