AddOn Lenovo 4X70M60571 Compatible 4GB DDR4-2400MHz Unbuffered Single Rank x8 1.2V 288-pin CL15 UDIMM - 4 GB (1 x 4GB) - DDR4-2400/PC4-19200 DDR4 SDRAM - 2400 MHz Single-rank Memory - CL15 - 1.20 V - Non-ECC - Unbuffered - 288-pin - UDIMM - Lifetime Warra

This Lenovo 4X70M60571 compatible 4GB DDR4-2400MHz Single Rank Unbuffered 1.2V 288-pin CL15 UDIMM 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.