HP P1N51AT COMP 4GB DDR4-2400MHZ 1.2V SRX8 UDIMMAddOn 4 GB DDR4 SDRAM Memory Module 4 GB (1 x 4GB) DDR4 2133 PC4 17000 DDR4 SDRAM 2133 MHz Single rank Memory CL15 1. 20 V Non ECC Unbuffered 288 pin UDIMM Lifetime Warranty VPN: P1N51AT AA SKU: RSC780290 UPC: 821455632864 4 GB of memory to heighten your computer's performance 2133 MHz memory speed with CL15 latency for great multitasking capability 288 pin pin DDR4 SDRAM interface synchronizes electrical and clock signals for an efficient data