How to identify MacBook models

check the models here:

http://www.everymac.com/systems/by_capability/mac-specs-by-machine-model-machine-id.html

By serial number

On most computers with Mac OS X, you can find the serial number in the About This Mac window. Otherwise, seeMacBook: How to find the serial number to learn where to find the serial number on the surface of your computer.

Type the serial number into the Check Your Service and Support Coverage page. The resulting screen will show your model.

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By model number or configuration on the box or receipt

If you still have the box or receipt from your MacBook, you can find the marketing model number or configuration details. Match your model number or configuration with the one from the table below to find your MacBook model. For the model number, the two characters before the slash (/) vary by country, but the part number will be the same worldwide. In the table below, "xx" represents these two variable characters. The configuration is listed as screen size/processor speed/RAM size/hard drive size/optical drive type.

Model	Model identifier	Model number	Configurations
MacBook (13-inch, Mid 2010)	MacBook7,1	MC516xx/A	13.3"/D2.4G/2x1GB/250/SD-DL
MacBook (13-inch, Late 2009)	MacBook 6,1	MC207xx/A	13.3"/D2.26G/2x1GB/250/SD-DL
MacBook (13-inch, Mid 2009)	MacBook5,2	MC240LL/A	13.3"/2.13/2X1GB/160/SD
MacBook (13-inch, Early 2009)	MacBook5,2	MB881xx/A	13.3"/D2.0G/2x1GB/120/SD-DL
MacBook (13-inch, Aluminum, Late 2008)	MacBook5,1	MB466xx/A	13.3"/D2.0G/2x1GB/160/SD-DL
		MB467xx/A	13.3"/D2.4G/2x1GB/250/SD-DL
MacBook (13-inch, Late 2008)	MacBook4,1	MB402xx/B	13.3"/D2.1G/2x512/120/SD-DL
MacBook (13-inch, Early 2008)	MacBook4,1	MB402xx/A	13.3"/D2.1G/2x512/120/Combo
		MB403xx/A	13.3"/D2.4G/2x1GB/160/SD-DL
		MB404xx/A	13.3"/D2.4G/2x1GB/250/SD-DL
MacBook (13-inch, Late 2007)	MacBook3,1	MB062xx/A	13.3"/D2.2G/2x512/120/SD-DL
		MB063xx/A	13.3"/D2.2G/2x512/160/SD-DL
MacBook (13-inch, Mid 2007)	MacBook2,1	MB061xx/A	13.3"/D2.0G/2x512/80/Combo
		MB062xx/A	13.3"/D2.16G/2x512/120/SD-DL
		MB063xx/A	13.3"/D2.16G/2x512/160/SD-DL
MacBook (Late 2006)	MacBook2,1	MA699xx/A	13.3"/D1.83G/2x256/60/Combo
		MA700xx/A	13.3"/D2.0G/2x512/80/SD-DL
		MA701xx/A	13.3"/D2.0G/2x512/120/SD-DL
MacBook	MacBook1,1	MA254xx/A	13"/1.83 GHz/60 GB/Combo
		MA255xx/A	13"/2 GHz/60 GB/SuperDrive
		MA472xx/A	13"/2 GHz/80 GB/SuperDrive