Hynix 4GB (1x 4GB) CL11 DDR3-1600 PC3-12800 1.5V 240-pin UDIMM RAM Module Model_Mac_Book_6_1 x8 configuration RAM kit is

x8 configuration RAM kit is for use in DDR3L compatible systems and operates at 1333 MT/s with an overall transfer rate of PC3L-10600

This RAM module runs at 400MHz per second

5V with a CAS Latency of CL2

This 4GB (1x 4GB) DDR3L 1066 MT/s RAM module from Crucial is for use in DDR3L compatible systems and operates at 1066 MT/s with an overall transfer rate of PC3L-8500

Hynix 4GB (1x 4GB) CL11 DDR3-1600 PC3-12800 1.5V 240-pin UDIMM RAM Module Model_Mac_Book_6_1 x8 configuration RAM kit isProduct Overview This 4GB (1x 4GB) DDR3 1600 MT s RAM module from Hynix is for use in DDR3 compatible systems and operates at 1600 MT s with an overall transfer rate of PC3 12800. This RAM module also operates at a standard voltage of 1. 5V with a CAS Latency of CL11, and is designed to allow you to run more applications simultaneously, switch between them faster, and provide a smoother computing experience. Technical Specifications Part No.