OWC In-line Digital Thermal Sensor Cable for iMac 2011 HDD/SSD Upgrade (no tools, SSD requires bracket) Classification_ram-ddr3l-1333-ecc-sodimm-4gb-1x-fm MT4GU16H2568-33-SPXX Capacity 4GB (1x 4GB)

MT4GU16H2568-33-SPXX Capacity 4GB (1x 4GB) Brand Micron Speed DDR3-1333 - 1333MT/s - PC3-10600 Voltage 1

x8 configuration RAM module from Crucial is for use in DDR3L compatible systems and operates at 1866 MT/s with an overall transfer rate of PC3L-14900

Dramatically improve performance and handle larger user and application workloads in your mission critical workstations and servers with this 16GB (1x 16GB) DDR4 2133 MT/s 288-pin RDIMM RAM module from Hynix

2xM391A2K43BB1-CRC Capacity 32GB (2x 16GB) Brand Samsung Speed DDR4-2400 - 2400MT/s - PC4-19200 Voltage 1

OWC In-line Digital Thermal Sensor Cable for iMac 2011 HDD/SSD Upgrade (no tools, SSD requires bracket) Classification_ram-ddr3l-1333-ecc-sodimm-4gb-1x-fm MT4GU16H2568-33-SPXX Capacity 4GB (1x 4GB)Includes: OWC In Line Digital Thermal Sensor Cable for Mid 2011 to Late 2011 iMac You might also need A 3. 5" SATA hard drive or a 2. 5" SSD Adaptadrive Converter Bracket (if using this kit to install an SSD) this sensor cable, plus installation tools Compatible with macs with the following Model ID's: (what is my Model ID?) iMac 21. 5 inch Late 2011 (iMac12,1) iMac 21. 5 inch Mid 2011 (iMac12,1) iMac 27 inch Mid 2011 (iMac12,2) Installation Video