Apple Macbook Pro 13-Inch (2013) review | Digital Trends
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OWC USB-C Dual HDMI 4K Display Adapter
MacBook Pro - Wikipedia
Right I/O Board SDXC HDMI USB for Apple MacBook Pro 13" Late 2012-Mid 2013 | eBay
Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Mid 2013 (27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 2-Pack : Electronics
Apple MacBook Pro (15-inch, 2013) review: Apple's high-end laptop gets better battery life and a lower price - CNET
Right I/O Board SDXC HDMI USB for Apple MacBook Pro 13" Late 2012-Mid 2013 | eBay
MacBook Pro (Retina, 13-inch, Late 2013) - Technical Specifications - Apple Support
Right I/O Board (HDMI, USB, SD) for MacBook Pro Retina 15" A1398 (Late 2013, Mid 2014)
I/O Board USB, Hdmi, SD For 13" Apple MacBook Pro Retina Late 2013 2014 / A1502 | eBay
Belkin 4K Mini DisplayPort to HDMI Adapter - Apple