4.0GB (2X 2GB) 1333MHz DDR3 SO-DIMM PC3-10600 204Pin SO-DIMM CL9 Memory RAM Upgrade Module for iMac, Mac Mini, MacBook Pro and PC laptops (1333DDR3S04S) - OWC OWC1333DDR3S04S

• UPC   794504763720
• OWC 4.0GB UPGRADE: Consists of Two 2GB DDR3 1333MHz PC3-10600 CL9 SO-DIMMs 1.5V 204-pin Memory Module Mac qualified COMPATIBLE WITH: iMac Models: Mid 2011 27 inch iMac (Model ID: iMac12,2). Mid 2010 27-inch iMac (Model ID: iMac11,3). Late 2011 21.5-inch (iMac Model ID: iMac12,1). Mid 2011 21.5-inch iMac (Model ID: iMac12,1). and Mid 2010 21.5-inch iMac (Model ID: iMac11,2) COMPATIBLE WITH: Mac mini: Mid 2011 Model ID: Macmini5,1 & Macmini5,2 and Mid 2011 Server Model ID: Macmini5,3 COMPATIBLE WITH: MacBook Pro: 13inch, 15inch, 17inch 2011 Models:  MacBookPro8,3  MacBookPro8,2  MacBookPro8,1 COMPATIBLE PART NUMBERS: 661-5860, 661-6036, 661-5961, 661-5938, 661-5528, CT25664BF1339, CT2G3S1339M, KVR1333D3S9/2G, KTA-MB1333/2G, M471B5773DH0-CH9, M471B5673FH0-CH9, HMT325S6BFR8C-H9 INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing