This Lenovo 64Y6652 compatible 4GB DDR3-1333MHz Dual Rank Unbuffered 1.5V 204-pin CL9 SODIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. Our products are also guaranteed by federal law to not affect or void OEM warranties.

• SoDIMM 4 GB of memory to refine your computer's performance
• DDR3 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation
• Up to 1333 MHz speed with CL9 latency for smooth computer performance