

Support for Apple iPhone headset with microphone.

Combined headphone/line in (supports digital output).802.11n Wi-Fi wireless networking IEEE 802.11a/b/g compatible.4GB, 8GB or 16GB of 1333MHz DDR3 memory.2.3GHz dual-core Intel Core i5 processor with 3MB shared 元 cache or 2.7GHz dual-core Intel Core i7 processor with 4MB shared 元 cache.320GB or 500GB Hard drive or 128GB, 256GB, or 512GB SSD.13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors.Battery: The battery is certainly replaceable, even though Apple doesn't consider it to be "user serviceable." See the Battery Replacement guide above for complete replacement information.When installed, your additional hard drive will mount on your desktop just like an external hard drive. The optical drive can easily be replaced with a second hard drive or SSD using an optical bay hard drive enclosure. Additional Storage: With the growing popularity of flash memory and cloud storage, you may find yourself rarely using the SuperDrive in your MacBook Pro.

Be advised, at the moment you need to use a piece of software to enable trim, called Trim Enabler-this involves some risk. For a full list of available upgrade options, check out our selection of MacBook Pro 13" Unibody Early 2011 hard drives.

You can easily upgrade the drive to 750 GB, 1 TB or a lightning-fast solid state drive.
