HP P1N55AT COMP 16GB DDR4-2400MHZ 1.2V DRX8 SODIMMAddOn 16 GB DDR4 SDRAM Memory Module 16 GB (1 x 16GB) DDR4 2400 PC4 19200 DDR4 SDRAM 2400 MHz Dual rank Memory CL15 1. 20 V Non ECC Unbuffered 260 pin SoDIMM Lifetime Warranty VPN: P1N55AT AA SKU: RSC510971 UPC: 821455632918 16 GB of memory to maintain symmetry with processor and hard drive and bring out the ultimate computing experience 2400 MHz of memory speed skillfully manages the variety of apps and computational tasks 260 pin pin DDR4 SDRAM