Apple MacBook Pro A1398 15.4" Series SDXC HDMI USB Right I/O Board w/ Cable 820-3547-A 661-8312. This is a replacement right I/O board for the Retina MacBook Pro released in late 2013. This board includes the right USB port, HDMI port, and SDXC card slot.
Input/Output Ports: 1x SDXC card slot, 1x HDMI, 1x USB 3.0
Color: Black
Type: Right I/O Board