LENOVO 0A89482 COMP 8GB DDR3-1600MHZ ECC SRX4 RDIMMAddOn 8GB DDR3 SDRAM Memory Module 8 GB (1 x 8GB) DDR3 1600 PC3 12800 DDR3 SDRAM 1600 MHz Dual rank Memory CL11 1. 50 V ECC Registered 240 pin DIMM Lifetime Warranty VPN: 0A89482 AM SKU: RSC501050 UPC: 821455324288 8 GB capacity is enough to execute all memory hungry programs simultaneously 1600 MHz memory speed for great multitasking capability DDR3 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get