64GB DDR4-2666MHZ LRDIMM QUAD RANK MODULE FOR DELLKingston 64GB DDR4 SDRAM Memory Module 64 GB (1 x 64GB) DDR4 2666 PC4 21300 DDR4 SDRAM 2666 MHz 1. 20 V 288 pin LRDIMM Lifetime Warranty VPN: KTD PE426LQ 64G SKU: RSC637845 UPC: 740617272857 64 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 2666 MHz of memory speed skillfully manages the variety of apps and computational tasks 288 pin pin DDR4 2666 PC4 21300 interface multiplexes 2 bit