Apple MacBook Pro MF843LL/A 13.3 16GB 128GB SSD Core�?i7-5557U 3.1GHz macOS. Silver (Used)

13.3-inch (2560 x 1600) LED DisplayIntel Core i7-5557U Processor (Dual-Core 3.1GHz 4MB Cache)16GB DDR3 System Memory128GB  Solid State Drive (SSD)Integrated Intel Iris Graphics 6100No Optical Drive2 x B 3.0 1 x HDMI 2 x DisplayPortBacklit Standard Keyboard and Multi-touch Trackpad1MP Webcam and Integrated MicrophoneNo Ethernet IEEE 802.11ac and Bluetooth 4.0 + HS6-cell Lithium-Ion Battery with up to 6 hours of useOperating System: macOS 10.120.71" x 12.35" x 8.62" (HxWxD); 3.5lbs

The MacBook Pro Core i7 3.1 13-Inch (Early 2015 Retina Display) originally was a configure-to-order configuration for both the MacBook Pro Core i5 2.7 13-Inch (Early 2015 Retina Display) and MacBook Pro Core i5 2.9 13-Inch (Early 2015 Retina Display) but also is documented as a separate model for reader convenience. Starting on October 27 2016 it only is a CTO option for the MacBook Pro Core i5 2.7 13-Inch (Early 2015 Retina Display). The processor (and the corresponding larger level 3 cache) are the only substantial differences between this model and its stock compatriots. The MacBook Pro Core i7 3.1 13-Inch (Early 2015 Retina Display) features a 14 nm Broadwell 3.1 GHz Intel Core i7 processor (5557U) with dual independent processor cores on a single silicon chip a 4 MB shared level 3 cache 16 GB of onboard 1866 MHz LPDDR3 SDRAM 128GB of 4 Lane PCIe-based flash storage and an integrated Intel Iris Graphics 6100 graphics processor that shares memory with the system. It also has an integrated 720p FaceTime HD webcam and a high-resolution LED-backlit 13.3 widescreen 2560x1600 (227 ppi) Retina display in a case that weighs just less than 3.5 pounds (1.58 kg). It does not have an internal optical drive.

• 13.3-inch (2560 x 1600) LED Display
• Intel Core i7-5557U Processor (Dual-Core 3.1GHz 4MB Cache)
• 16GB DDR3 System Memory
• 128GB  Solid State Drive (SSD)
• Integrated Intel Iris Graphics 6100
• No Optical Drive
• 2 x B 3.0 1 x HDMI 2 x DisplayPort
• Backlit Standard Keyboard and Multi-touch Trackpad
• 1MP Webcam and Integrated Microphone
• No Ethernet IEEE 802.11ac and Bluetooth 4.0 + HS
• 6-cell Lithium-Ion Battery with up to 6 hours of use
• Operating System: macOS 10.12
• 0.71 x 12.35 x 8.62 (HxWxD); 3.5lbs