OWC 16GB (2 x 8GB) 1867 MHZ DDR3 SO-DIMM PC3-14900 204 Pin CL11 Memory Upgrade<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>16.0 GB (2 x 8GB) 1867 MHZ DDR3 SO-DIMM PC3-14900 204 Pin CL11 Memory Upgrade</li><li>Memory upgrade kit For 2015 (Late) iMac 27" w/ Retina 5K models (October 2015) Model ID:iMac17，1: 3.2GHz i5， 3.3GHz i5， 4.0GHz i7</li><li>OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program</li><li>Product Specs: Technology: DDR3 SO-DIMM RoHS: Yes Pin Count: 204-pin Op. Data Rate: DDR3-1867 Speed: PC3-14900 CL: 11 Cycle Time: 1.875ns Voltage: 1.35V ECC: Non ECC Module Ranks: Dual Rank Register: Non Parity.</li><li>Low Noise 8-Layer PCB Meets and/or Exceeds Apple/Intel Specifications. Fully Compliant with JEDEC specification. RoHS Certified</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ue-ZwF%2B8L.jpg" noproxy>