Features:<br />Refurbished (see below for description)<br />Silver color<br />Mac OS X version 10.7.5 pre-installed<br />6-cell battery<br />Intel Core i7-3615QM 2.3 GHz quad-core processor w/Turbo Boost 2.0<br />6 MB Intel Smart Cache， 3.33 GHz Max Turbo Frequency<br />4 GB DDR3 SDRAM<br />500 GB SATA hard drive<br />Slot-loading SuperDrive DVD±RW DL drive<br />Intel HD Graphics 4000 and NVIDIA GeForce GT 650M 512 MB GDDR5 w/switchable graphics<br />Integrated audio with built-in stereo speakers<br />Built-in omnidirectional microphone<br />Built-in 10/100/1000 Gigabit Ethernet<br />Built-in 54 Mbps AirPort Extreme wireless LAN (802.11n)<br />Built-in Bluetooth 4.0<br />Built-in 720p FaceTime HD camera<br />Full-size， illuminated keyboard with ambient light sensor; scrolling Trackpad<br />15.4-inch TFT widescreen LED-backlit LCD display (1440 x 900 resolution)<br />SDXC card slot<br />Kensington cable lock slot<br /><br />Battery Specifications:<br />Lithium-ion<br />60 Wh<br />10.8 V<br /><br />I/O Ports:<br />Thunderbolt port<br />Two (2) USB 3.0 ports<br />FireWire 800<br />RJ-45 Ethernet port<br />Combined optical digital audio input/audio line-in mini-jack<br />Combined optical digital audio output/headphone out mini-jack<br />SDXC card slot<br /><br />Package Includes:<br />Apple MacBook Pro Core i7-3615QM 2.3GHz Notebook<br />Mac OS X version 10.7.5 pre-installed<br />6-cell battery<br />Power adapter<br /><br />This is a Refurbished Grade C Item， while this item has been tested to be in good working condition it will show signs of use and cosmetic blemishes， examples of which are: scratches， scuffs， dents， hairline cracks， dings， bright or dead pixels all of which do not effect the usability of the item.