OWC 8GB (2x4GB) PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Upgrade Kit for iMac, Mac Mini, and MacBook Pro, (OWC1600DDR3S08S) Memory Upgrade Kit For 2011-2015 iMac, 2011-12 Mac mini, and 2011-2012 MacBook Pro (non-Retina display) models 2 x 4GB (8.0GB) OWC memory, PC12800 DDR3L Non ECC 1600 MHz 204 pin SO-DIMM Memory Module Upgrade Kit Compatible with Specific 2011-2015 iMac, 2011-12 Mac mini, and 2011-2012 MacBook Pro (non-Retina display) models- Models listed below NOT COMPATIBLE with 2012,2013,2014 MacBook Pro 13-inch and 15-inch Retina Display OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program iMac w/Retina 5K display(27-inch Mid 2015)(May 2015) Model ID: iMac15,1(3.3GHz i5, 3.5GHz i5, 4.0GHz i7) iMac w/Retina 5K display(27-inch Late 2014)(October 2014) Model ID: iMac15,1(3.5GHz i5, 4.0GHz i7) iMac (27-inch Late 2013)(September, 2013) Model ID: iMac14,2(3.2GHz i5, 3.4GHz i5, 3.5GHz i7) iMac (27-inch Late 2012)(November, 2012) Model ID: iMac13,2(2.9GHz i5, 3.2GHz i5, 3.4GHz i7) iMac (27-inch Mid 2011)(May, 2011) Model ID: iMac12,2(2.7GHz i5, 3.1GHz i5, 3.4GHz i7) iMac (21.5-inch Early 2013)(March, 2013) Model ID: iMac13,3(3.3GHz i3) iMac (21.5-inch Late 2012)(November, 2012) Model ID: iMac13,1(2.7GHz i5, 2.9GHz i5, 3.1GHz i7) iMac (21.5-inch Mid 2011)(May, 2011) Model ID: iMac12,1(2.5GHz i5, 2.7GHz i5, 2.8GHz i7) MacBook Pro (15-inch 2012)(June, 2012) Model ID: MacBookPro9,1(2.3GHz, 2.6GHz, 2.7GHz) MacBook Pro (13-inch 2012)(June, 2012) Model ID: MacBookPro9,2(2.5GHz, 2.9GHz) MacBook Pro (17-inch 2011)(October, 2011) Model ID: MacBookPro8,3 (2.4GHz, 2.5GHz) MacBook Pro (17-inch Early 2011)(February, 2011) Model ID: MacBookPro8,3 (2.2GHz, 2.3GHz) MacBook Pro (15-inch 2011)(October, 2011) Model ID: MacBookPro8,2 (2.2GHz, 2.4GHz, 2.5GHz) MacBook Pro (15-inch Early 2011)(February, 2011) Model ID: MacBookPro8,2(2.0GHz, 2.2GHz, 2.3GHz) MacBook Pro (13-inch 2011)(October, 2011) Model ID: MacBookPro8,1(2.4GHz, 2.8GHz) MacBook Pro (13-inch Early 2011)(February, 2011) Model ID: MacBookPro8,1(2.3GHz, 2.7GHz) Mac mini (Late 2012)(October, 2012) Model ID: Macmini6,1 &amp; Macmini6,2(2.3GHz, 2.5GHz, 2.6GHz) Mac mini (Late 2012 Server)(October, 2012) Model ID: Macmini6,2(2.3GHz, 2.6GHz Mac mini (Mid 2011)(July, 2011) Model ID: Macmini5,1 &amp; Macmini5,2(2.3GHz, 2.5GHz, 2.7GHz) Mac mini (Mid 2011 Server)(July, 2011) Model ID: Macmini5,3(2.0GHz) with Intel / AMD Process based PCs NOT COMPATIBLE:MacBook Pro (13-inch Retina Display 2014)(July, 2014)Model ID:MacBookPro11,1(2.6GHz, 2.8GHz, 3.0GHz) NOT COMPATIBLE:MacBook Pro (15-inch Retina Display 2014)(July, 2014)Model ID:MacBookPro11,2(2.2GHz, 2.5GHz, 2.8GHz) NOT COMPATIBLE:MacBook Pro (13-inch Retina Display 2013)(October, 2013)Model ID:MacBookPro11,1(2.4GHz, 2.6GHz, 2.8GHz) NOT COMPATIBLE:MacBook Pro (15-inch Retina Display)(October, 2013)Model ID:MacBookPro11,2; MacBookPro11,3(2.0GHz, 2.3GHz, 2.6GHz) NOT COMPATIBLE:MacBook Pro (13-inch Retina Display)(Oct 2012, Feb 2013)Model ID:MacBookPro10,2(2.5GHz, 2.6GHz, 2.9GHz, 3.0GHz) NOT COMPATIBLE:MacBook Pro (15-inch Retina Display)(Jun 2012, Feb 2013)Model ID:MacBookPro10,1(2.3GHz, 2.4GHz, 2.6GHz, 2.7GHz, 2.8GHz) <span class="a-text-bold">Technology:</span> DDR3L SO-DIMM <span class="a-text-bold">Density:</span> 4GB (4096MB) per module <span class="a-text-bold">RoHS:</span> Yes <span class="a-text-bold">Pin Count:</span> 204-pin <span class="a-text-bold">Op. Temp.:</span> 0C to +85C <span class="a-text-bold">Data Rate:</span> DDR3L-1600 <span class="a-text-bold">Speed:</span> PC3-12800 <span class="a-text-bold">CL:</span> 11 <span class="a-text-bold">Cycle Time:</span> 1.875ns <span class="a-text-bold">Voltage:</span> 1.35V <span class="a-text-bold">ECC:</span> Non ECC <span class="a-text-bold">Module Ranks:</span> Dual Rank <span class="a-text-bold">Register:</span> Non Parity Low Noise 8-Layer PCB Meets and/or Exceeds Apple/Intel Specifications Fully Compliant with JEDEC specifications